Subtract 56/35 from 7/9, Solve 7/9 - 1 21/35 as a fraction

Subtract 56/35 from 7/9

1^st number: 7/9, 2^nd number: 1 21/35

7/9 - 56/35 is -37/45.

Find the least common denominator or LCM of the two denominators:
LCM of 9 and 35 is 315

Next, find the equivalent fraction of both fractional numbers with denominator 315
For the 1st fraction, since 9 × 35 = 315,
7/9 = 7 × 35/9 × 35 = 245/315
Likewise, for the 2nd fraction, since 35 × 9 = 315,
56/35 = 56 × 9/35 × 9 = 504/315
Subtract the two like fractions:
245/315 - 504/315 = 245 - 504/315 = -259/315
After reducing the fraction, the answer is -37/45

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