Add 42/90 and 80/63
1st number: 42/90, 2nd number: 1 17/63
42/90 + 80/63 is 547/315.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 63 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 90 × 7 = 630,
42/90 = 42 × 7/90 × 7 = 294/630 - Likewise, for the 2nd fraction, since 63 × 10 = 630,
80/63 = 80 × 10/63 × 10 = 800/630 - Add the two like fractions:
294/630 + 800/630 = 294 + 800/630 = 1094/630 - 1094/630 simplified gives 547/315
- So, 42/90 + 80/63 = 547/315
In mixed form: 1232/315
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