Subtract 25/42 from 30/16, Solve 1 14/16

Subtract 25/42 from 30/16

1^st number: 1 14/16, 2^nd number: 25/42

30/16 - 25/42 is 215/168.

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,
30/16 = 30 × 21/16 × 21 = 630/336
Likewise, for the 2nd fraction, since 42 × 8 = 336,
25/42 = 25 × 8/42 × 8 = 200/336
Subtract the two like fractions:
630/336 - 200/336 = 630 - 200/336 = 430/336
After reducing the fraction, the answer is 215/168
In mixed form: 147/168

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