Subtract 4/63 from 16/12, Solve 1 4/12

Subtract 4/63 from 16/12

1^st number: 1 4/12, 2^nd number: 4/63

16/12 - 4/63 is 80/63.

Find the least common denominator or LCM of the two denominators:
LCM of 12 and 63 is 252

Next, find the equivalent fraction of both fractional numbers with denominator 252
For the 1st fraction, since 12 × 21 = 252,
16/12 = 16 × 21/12 × 21 = 336/252
Likewise, for the 2nd fraction, since 63 × 4 = 252,
4/63 = 4 × 4/63 × 4 = 16/252
Subtract the two like fractions:
336/252 - 16/252 = 336 - 16/252 = 320/252
After reducing the fraction, the answer is 80/63
In mixed form: 117/63

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