Subtract 5/42 from 20/16, Solve 1 4/16

Subtract 5/42 from 20/16

1^st number: 1 4/16, 2^nd number: 5/42

20/16 - 5/42 is 95/84.

Find the least common denominator or LCM of the two denominators:
LCM of 16 and 42 is 336

Next, find the equivalent fraction of both fractional numbers with denominator 336
For the 1st fraction, since 16 × 21 = 336,
20/16 = 20 × 21/16 × 21 = 420/336
Likewise, for the 2nd fraction, since 42 × 8 = 336,
5/42 = 5 × 8/42 × 8 = 40/336
Subtract the two like fractions:
420/336 - 40/336 = 420 - 40/336 = 380/336
After reducing the fraction, the answer is 95/84
In mixed form: 111/84

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