Subtract 80/9 from 7/56, Solve 7/56

Subtract 80/9 from 7/56

1^st number: 7/56, 2^nd number: 8 8/9

7/56 - 80/9 is -631/72.

Find the least common denominator or LCM of the two denominators:
LCM of 56 and 9 is 504

Next, find the equivalent fraction of both fractional numbers with denominator 504
For the 1st fraction, since 56 × 9 = 504,
7/56 = 7 × 9/56 × 9 = 63/504
Likewise, for the 2nd fraction, since 9 × 56 = 504,
80/9 = 80 × 56/9 × 56 = 4480/504
Subtract the two like fractions:
63/504 - 4480/504 = 63 - 4480/504 = -4417/504
After reducing the fraction, the answer is -631/72

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