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Addition and Subtraction of Decimals

Find the sum:...

Question

Find the sum:

(i) (ii) (iii)

(iv) (v) (vi)

(vii)

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Solution

(i) $\frac{4}{5} + (\frac{- 11}{4}) = \frac{4}{5} - \frac{11}{4} = \frac{16 - 55}{20} = \frac{- 39}{20}$

(ii)

L.C.M of 3 and 5 is 15.

(iii)

L.C.M of 10 and 15 is 30.

(iv)

L.C.M of 11 and 9 is 99.

(v)

L.C.M of 19 and 57 is 57.

(vi)

(vii) =

L.C.M of 3 and 5 is 15.

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Similar questions

Q. Simplify:
(i)

\frac{11}{12} \div (\frac{5}{9} \times \frac{18}{25})

(2 \frac{1}{2} \times \frac{8}{10}) \div (1 \frac{1}{2} + \frac{5}{8})

\frac{15}{16}

(\frac{5}{6} - \frac{1}{2}) \div \frac{10}{11}

\frac{9}{8} \div \frac{3}{5}

(\frac{3}{4} + \frac{3}{5})

\frac{2}{5} \div {\frac{1}{5} o f [\frac{3}{4} - \frac{1}{2}] - 1}

(1 \frac{3}{4} \times 3 \frac{1}{7}) - (4 \frac{3}{8} \div 5 \frac{3}{5})

Find:

(i) (ii) (iii)

(iv) (v) (vi)

(vii) (viii)

Solve:

(i) $2 - \frac{3}{5}$

(ii) $4 + \frac{7}{8}$

(iii) $\frac{3}{5} + \frac{2}{7}$

(iv) $\frac{9}{11} - \frac{4}{15}$

(v) $\frac{7}{10} + \frac{2}{5} + \frac{3}{2}$

(vi) $2 \frac{2}{3} + 3 \frac{1}{2}$

(vii) $8 \frac{1}{2} - 3 \frac{5}{8}$

Find the product:

(i) (ii) (iii)

(iv) (v) (vi)

source $(i) \frac{8}{9} + \frac{- 11}{6} (i i) 3 + \frac{5}{- 7} (i i i) \frac{1}{- 12} a n d \frac{2}{- 15} (i v) \frac{- 8}{19} + \frac{- 4}{57} (v) \frac{7}{9} + \frac{3}{- 4} (v i) \frac{5}{26} + \frac{11}{- 39} (v i i) \frac{- 16}{9} + \frac{- 5}{12} (v i i i) \frac{- 13}{8} + \frac{5}{36} (i x) 0 + \frac{- 3}{5} (x) 1 + \frac{- 4}{5} (x i) \frac{- 5}{16} + \frac{7}{24}$

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