Add 54/63 and 84/72
1st number: 54/63, 2nd number: 1 12/72
54/63 + 84/72 is 85/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 72 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 63 × 8 = 504,
54/63 = 54 × 8/63 × 8 = 432/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
84/72 = 84 × 7/72 × 7 = 588/504 - Add the two like fractions:
432/504 + 588/504 = 432 + 588/504 = 1020/504 - 1020/504 simplified gives 85/42
- So, 54/63 + 84/72 = 85/42
In mixed form: 21/42
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