Subtract 15/21 from 54/16, Solve 3 6/16

Subtract 15/21 from 54/16

1^st number: 3 6/16, 2^nd number: 15/21

54/16 - 15/21 is 149/56.

Find the least common denominator or LCM of the two denominators:
LCM of 16 and 21 is 336

Next, find the equivalent fraction of both fractional numbers with denominator 336
For the 1st fraction, since 16 × 21 = 336,
54/16 = 54 × 21/16 × 21 = 1134/336
Likewise, for the 2nd fraction, since 21 × 16 = 336,
15/21 = 15 × 16/21 × 16 = 240/336
Subtract the two like fractions:
1134/336 - 240/336 = 1134 - 240/336 = 894/336
After reducing the fraction, the answer is 149/56
In mixed form: 237/56

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