Add 70/72 and 21/49, Solve 70/72 + 21/49 as a fraction

Add 70/72 and 21/49

70/72 + 21/49 is 353/252.

Find the least common denominator or LCM of the two denominators:
LCM of 72 and 49 is 3528

Next, find the equivalent fraction of both fractional numbers with denominator 3528
For the 1st fraction, since 72 × 49 = 3528,
70/72 = 70 × 49/72 × 49 = 3430/3528
Likewise, for the 2nd fraction, since 49 × 72 = 3528,
21/49 = 21 × 72/49 × 72 = 1512/3528
Add the two like fractions:
3430/3528 + 1512/3528 = 3430 + 1512/3528 = 4942/3528
4942/3528 simplified gives 353/252
So, 70/72 + 21/49 = 353/252
In mixed form: 1101/252

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