Add 42/45 and 84/63
1st number: 42/45, 2nd number: 1 21/63
42/45 + 84/63 is 34/15.
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,
42/45 = 42 × 7/45 × 7 = 294/315 - Likewise, for the 2nd fraction, since 63 × 5 = 315,
84/63 = 84 × 5/63 × 5 = 420/315 - Add the two like fractions:
294/315 + 420/315 = 294 + 420/315 = 714/315 - 714/315 simplified gives 34/15
- So, 42/45 + 84/63 = 34/15
In mixed form: 24/15
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