What is 7-9 - 3-9-4-9-4-8-4-7-9-4-

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Standard IX

Mathematics

Subtraction of Unlike Fractions

What is 7/9 -...

Question

What is 7/9 - 3/9?

4/9

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4/8

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4/7

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9/4

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$(i) \frac{3}{7} + \frac{- 4}{9} - \frac{- 11}{7} - \frac{7}{9} (i i) \frac{2}{3} + \frac{- 4}{5} - \frac{1}{3} - \frac{2}{5} (i i i) \frac{4}{7} - \frac{- 8}{9} - \frac{- 13}{7} + \frac{17}{9}$

Fill in the blanks:

$(i) - 4 \times \frac{7}{9} = \frac{7}{9} \times$ ___

$(i i) \frac{5}{11} \times \frac{- 3}{8} = \frac{- 3}{8} \times$ ___

$(i i i) \frac{1}{2} \times (\frac{3}{4} + \frac{- 5}{12}) = \frac{1}{2} \times$ ____ $+ (\times) \frac{- 5}{12}$

$(i v) \frac{- 4}{5} \times \frac{5}{7} \times$ ___ $= (\frac{- 4}{5} \times \frac{5}{7}) \times \frac{- 8}{9}$

$Name the multiplication property of rational numbers shown below: (i) \frac{3}{5} \times \frac{- 8}{9} = \frac{- 8}{9} \times \frac{3}{5} (i i) \frac{- 3}{4} \times (\frac{5}{7} \times \frac{- 8}{15}) = (\frac{- 3}{5} \times \frac{5}{7}) \times \frac{- 8}{15} (i i i) \frac{4}{5} \times (\frac{3}{- 8} + \frac{- 4}{7}) = \frac{4}{5} \times \frac{3}{- 8} + \frac{4}{5} \times \frac{- 4}{7} (i v) \frac{- 7}{5} \times \frac{5}{- 7} = 1 (v) \frac{8}{- 9} \times 1 = 1 \times \frac{8}{- 9} = \frac{8}{- 9} (v i) \frac{- 3}{4} \times 0 = 0$

Find the value of x for which ${(\frac{4}{9})}^{4} \times {(\frac{4}{9})}^{- 7} = {(\frac{4}{9})}^{2 x - 1}$

Q. Tell how many times!

9 + 9 + 9 + 9 + 9 + 9	= 6 × 9	= 54
4 + 4 + 4 + 4 + 4	= 5 × 4	= 20
8 + 8 + 8	=____ × 8	= ____
3 + 3 + 3 + 3 + 3	= 5 × ____	= ____
30 + 30 + 30	= ____ × ____	= ____
7 + 7 + 7 + 7 + 7 + 7	= ____ × ____	= ____
12 + 12 + 12 + 12	= ____ × 12	= ____
6 + 6 + 6	= ____ × ____	= ____
10 + 10 + 10 + 10	= ____ × ____	= ____
2 + 2 + 2 + 2 + 2	= ____ × ____	= ____
6 + 6 + 6 + 6 + 6 + 6 + 6	= ____ × ____	= ____

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