Add 9/45 and 15/21, Solve 9/45 + 15/21 as a fraction

Add 9/45 and 15/21

9/45 + 15/21 is 32/35.

Find the least common denominator or LCM of the two denominators:
LCM of 45 and 21 is 315

Next, find the equivalent fraction of both fractional numbers with denominator 315
For the 1st fraction, since 45 × 7 = 315,
9/45 = 9 × 7/45 × 7 = 63/315
Likewise, for the 2nd fraction, since 21 × 15 = 315,
15/21 = 15 × 15/21 × 15 = 225/315
Add the two like fractions:
63/315 + 225/315 = 63 + 225/315 = 288/315
288/315 simplified gives 32/35
So, 9/45 + 15/21 = 32/35

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