Subtract 35/9 from 56/70, Solve 56/70

Subtract 35/9 from 56/70

1^st number: 56/70, 2^nd number: 3 8/9

56/70 - 35/9 is -139/45.

Find the least common denominator or LCM of the two denominators:
LCM of 70 and 9 is 630

Next, find the equivalent fraction of both fractional numbers with denominator 630
For the 1st fraction, since 70 × 9 = 630,
56/70 = 56 × 9/70 × 9 = 504/630
Likewise, for the 2nd fraction, since 9 × 70 = 630,
35/9 = 35 × 70/9 × 70 = 2450/630
Subtract the two like fractions:
504/630 - 2450/630 = 504 - 2450/630 = -1946/630
After reducing the fraction, the answer is -139/45

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