Add 25/16 and 21/56, Solve 1 9/16 + 21/56 as a fraction

Add 25/16 and 21/56

1^st number: 1 9/16, 2^nd number: 21/56

25/16 + 21/56 is 31/16.

Find the least common denominator or LCM of the two denominators:
LCM of 16 and 56 is 112

Next, find the equivalent fraction of both fractional numbers with denominator 112
For the 1st fraction, since 16 × 7 = 112,
25/16 = 25 × 7/16 × 7 = 175/112
Likewise, for the 2nd fraction, since 56 × 2 = 112,
21/56 = 21 × 2/56 × 2 = 42/112
Add the two like fractions:
175/112 + 42/112 = 175 + 42/112 = 217/112
217/112 simplified gives 31/16
So, 25/16 + 21/56 = 31/16
In mixed form: 115/16

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