Add 72/21 and 9/49, Solve 3 9/21 + 9/49 as a fraction

Add 72/21 and 9/49

1^st number: 3 9/21, 2^nd number: 9/49

72/21 + 9/49 is 177/49.

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 49 is 147

Next, find the equivalent fraction of both fractional numbers with denominator 147
For the 1st fraction, since 21 × 7 = 147,
72/21 = 72 × 7/21 × 7 = 504/147
Likewise, for the 2nd fraction, since 49 × 3 = 147,
9/49 = 9 × 3/49 × 3 = 27/147
Add the two like fractions:
504/147 + 27/147 = 504 + 27/147 = 531/147
531/147 simplified gives 177/49
So, 72/21 + 9/49 = 177/49
In mixed form: 330/49

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