Add 30/45 and 15/63
30/45 + 15/63 is 19/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 63 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 45 × 7 = 315,
30/45 = 30 × 7/45 × 7 = 210/315 - Likewise, for the 2nd fraction, since 63 × 5 = 315,
15/63 = 15 × 5/63 × 5 = 75/315 - Add the two like fractions:
210/315 + 75/315 = 210 + 75/315 = 285/315 - 285/315 simplified gives 19/21
- So, 30/45 + 15/63 = 19/21
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