Add 70/21 and 4/16, Solve 3 7/21 + 4/16 as a fraction

Add 70/21 and 4/16

1^st number: 3 7/21, 2^nd number: 4/16

70/21 + 4/16 is 43/12.

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

Next, find the equivalent fraction of both fractional numbers with denominator 336
For the 1st fraction, since 21 × 16 = 336,
70/21 = 70 × 16/21 × 16 = 1120/336
Likewise, for the 2nd fraction, since 16 × 21 = 336,
4/16 = 4 × 21/16 × 21 = 84/336
Add the two like fractions:
1120/336 + 84/336 = 1120 + 84/336 = 1204/336
1204/336 simplified gives 43/12
So, 70/21 + 4/16 = 43/12
In mixed form: 37/12

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