Add 21/7 and 27/16, Solve 3 0/7 + 1 11/16 as a fraction

Add 21/7 and 27/16

1^st number: 3 0/7, 2^nd number: 1 11/16

21/7 + 27/16 is 75/16.

Find the least common denominator or LCM of the two denominators:
LCM of 7 and 16 is 112

Next, find the equivalent fraction of both fractional numbers with denominator 112
For the 1st fraction, since 7 × 16 = 112,
21/7 = 21 × 16/7 × 16 = 336/112
Likewise, for the 2nd fraction, since 16 × 7 = 112,
27/16 = 27 × 7/16 × 7 = 189/112
Add the two like fractions:
336/112 + 189/112 = 336 + 189/112 = 525/112
525/112 simplified gives 75/16
So, 21/7 + 27/16 = 75/16
In mixed form: 411/16

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