Add 9/21 and 18/49, Solve 9/21 + 18/49 as a fraction

Add 9/21 and 18/49

9/21 + 18/49 is 39/49.

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,
9/21 = 9 × 7/21 × 7 = 63/147
Likewise, for the 2nd fraction, since 49 × 3 = 147,
18/49 = 18 × 3/49 × 3 = 54/147
Add the two like fractions:
63/147 + 54/147 = 63 + 54/147 = 117/147
117/147 simplified gives 39/49
So, 9/21 + 18/49 = 39/49

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