Add 42/63 and 12/45
42/63 + 12/45 is 14/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 45 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 63 × 5 = 315,
42/63 = 42 × 5/63 × 5 = 210/315 - Likewise, for the 2nd fraction, since 45 × 7 = 315,
12/45 = 12 × 7/45 × 7 = 84/315 - Add the two like fractions:
210/315 + 84/315 = 210 + 84/315 = 294/315 - 294/315 simplified gives 14/15
- So, 42/63 + 12/45 = 14/15
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