Subtract 70/64 from 4/7, Solve 4/7 - 1 6/64 as a fraction

Subtract 70/64 from 4/7

1^st number: 4/7, 2^nd number: 1 6/64

4/7 - 70/64 is -117/224.

Find the least common denominator or LCM of the two denominators:
LCM of 7 and 64 is 448

Next, find the equivalent fraction of both fractional numbers with denominator 448
For the 1st fraction, since 7 × 64 = 448,
4/7 = 4 × 64/7 × 64 = 256/448
Likewise, for the 2nd fraction, since 64 × 7 = 448,
70/64 = 70 × 7/64 × 7 = 490/448
Subtract the two like fractions:
256/448 - 490/448 = 256 - 490/448 = -234/448
After reducing the fraction, the answer is -117/224

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