Add 49/72 and 36/21, Solve 49/72 + 1 15/21 as a fraction

Add 49/72 and 36/21

1^st number: 49/72, 2^nd number: 1 15/21

49/72 + 36/21 is 1207/504.

Find the least common denominator or LCM of the two denominators:
LCM of 72 and 21 is 504

Next, find the equivalent fraction of both fractional numbers with denominator 504
For the 1st fraction, since 72 × 7 = 504,
49/72 = 49 × 7/72 × 7 = 343/504
Likewise, for the 2nd fraction, since 21 × 24 = 504,
36/21 = 36 × 24/21 × 24 = 864/504
Add the two like fractions:
343/504 + 864/504 = 343 + 864/504 = 1207/504
So, 49/72 + 36/21 = 1207/504
In mixed form: 2199/504

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