Add 56/16 and 7/21, Solve 3 8/16 + 7/21 as a fraction

Add 56/16 and 7/21

1^st number: 3 8/16, 2^nd number: 7/21

56/16 + 7/21 is 23/6.

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,
56/16 = 56 × 21/16 × 21 = 1176/336
Likewise, for the 2nd fraction, since 21 × 16 = 336,
7/21 = 7 × 16/21 × 16 = 112/336
Add the two like fractions:
1176/336 + 112/336 = 1176 + 112/336 = 1288/336
1288/336 simplified gives 23/6
So, 56/16 + 7/21 = 23/6
In mixed form: 35/6

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