Add 90/72 and 12/63
1st number: 1 18/72, 2nd number: 12/63
90/72 + 12/63 is 121/84.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 63 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 72 × 7 = 504,
90/72 = 90 × 7/72 × 7 = 630/504 - Likewise, for the 2nd fraction, since 63 × 8 = 504,
12/63 = 12 × 8/63 × 8 = 96/504 - Add the two like fractions:
630/504 + 96/504 = 630 + 96/504 = 726/504 - 726/504 simplified gives 121/84
- So, 90/72 + 12/63 = 121/84
In mixed form: 137/84
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