Evaluate
1)-4/7+2/-3
2)13/15-12/25

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Solution

$(1) . - \frac{4}{7} + (- \frac{2}{3}) = - \frac{4}{7} - \frac{2}{3} = \frac{- 12 - 14}{21} = - \frac{26}{21} (2) . \frac{13}{15} - \frac{12}{25} = \frac{65 - 36}{75} = \frac{29}{75}$

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Similar questions

Q. Evaluate:

- 2 \times \frac{3}{12} \times \frac{5}{10} \times \frac{7}{15} \times \frac{- 60}{7}

Q. Evaluate.
(i) 9 × (− 3) × (− 6)
(ii) (− 5) × (− 10) × (− 7) × 2
(iii) (− 18) × (− 43) × 0
(iv) (− 9) × (− 8) × (− 1) × 1
(v) − 12 × (− 15) × 6 × 4
(vi) − 7 × (− 4) × (− 6) × (− 2)

Evaluate :

$(i) \frac{3}{7} + \frac{- 4}{9} + \frac{- 11}{7} + \frac{7}{9} (i i) \frac{2}{3} + \frac{- 4}{5} + \frac{1}{3} + \frac{2}{5} (i i i) \frac{4}{7} + 0 + \frac{- 8}{9} + \frac{- 13}{7} + \frac{17}{9} (i v) \frac{3}{8} + \frac{- 5}{12} + \frac{3}{7} + \frac{3}{12} + \frac{- 5}{8} + \frac{- 2}{7}$

Q. Evaluate :

{∣ ∣ ∣ ∣ \begin{matrix} 2 & 3 & 7 13 & 17 & 5 15 & 20 & 12 \end{matrix} ∣ ∣ ∣ ∣}^{2}

Re-arrange suitably and find the sum in each of the following :

(i) $\frac{11}{12} + \frac{- 17}{3} + \frac{11}{2} + \frac{- 25}{2}$

(ii) $\frac{- 6}{7} + \frac{- 5}{6} + \frac{- 4}{9} + \frac{- 15}{7}$

(iii) $\frac{3}{5} + \frac{7}{3} + \frac{9}{5} + \frac{- 13}{15} + \frac{- 7}{3}$

(iv) $\frac{4}{13} + \frac{- 5}{8} + \frac{- 8}{13} + \frac{9}{13}$

(v) $\frac{2}{3} + \frac{- 4}{5} + \frac{1}{3} + \frac{2}{5}$

(vi) $\frac{1}{8} + \frac{5}{12} + \frac{2}{7} + \frac{7}{12} + \frac{9}{7} + \frac{- 5}{16}$

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Evaluate 1)-4/7+2/-3 2)13/15-12/25

1. -47 + -23=-47 - 23=-12 - 1421=-26212. 1315 - 1225=65 - 3675=2975

Evaluate
1)-4/7+2/-3
2)13/15-12/25

$(1) . - \frac{4}{7} + (- \frac{2}{3}) = - \frac{4}{7} - \frac{2}{3} = \frac{- 12 - 14}{21} = - \frac{26}{21} (2) . \frac{13}{15} - \frac{12}{25} = \frac{65 - 36}{75} = \frac{29}{75}$