Add 9/72 and 32/21, Solve 9/72 + 1 11/21 as a fraction

Add 9/72 and 32/21

1^st number: 9/72, 2^nd number: 1 11/21

9/72 + 32/21 is 277/168.

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,
9/72 = 9 × 7/72 × 7 = 63/504
Likewise, for the 2nd fraction, since 21 × 24 = 504,
32/21 = 32 × 24/21 × 24 = 768/504
Add the two like fractions:
63/504 + 768/504 = 63 + 768/504 = 831/504
831/504 simplified gives 277/168
So, 9/72 + 32/21 = 277/168
In mixed form: 1109/168

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