Add 21/16 and 54/14, Solve 1 5/16 + 3 12/14 as a fraction

Add 21/16 and 54/14

1^st number: 1 5/16, 2^nd number: 3 12/14

21/16 + 54/14 is 579/112.

Find the least common denominator or LCM of the two denominators:
LCM of 16 and 14 is 112

Next, find the equivalent fraction of both fractional numbers with denominator 112
For the 1st fraction, since 16 × 7 = 112,
21/16 = 21 × 7/16 × 7 = 147/112
Likewise, for the 2nd fraction, since 14 × 8 = 112,
54/14 = 54 × 8/14 × 8 = 432/112
Add the two like fractions:
147/112 + 432/112 = 147 + 432/112 = 579/112
So, 21/16 + 54/14 = 579/112
In mixed form: 519/112

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