Subtract 63/16 from 56/35, Solve 1 21/35

Subtract 63/16 from 56/35

1^st number: 1 21/35, 2^nd number: 3 15/16

56/35 - 63/16 is -187/80.

Find the least common denominator or LCM of the two denominators:
LCM of 35 and 16 is 560

Next, find the equivalent fraction of both fractional numbers with denominator 560
For the 1st fraction, since 35 × 16 = 560,
56/35 = 56 × 16/35 × 16 = 896/560
Likewise, for the 2nd fraction, since 16 × 35 = 560,
63/16 = 63 × 35/16 × 35 = 2205/560
Subtract the two like fractions:
896/560 - 2205/560 = 896 - 2205/560 = -1309/560
After reducing the fraction, the answer is -187/80

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