Add 72/56 and 84/63
1st number: 1 16/56, 2nd number: 1 21/63
72/56 + 84/63 is 55/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 63 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 56 × 9 = 504,
72/56 = 72 × 9/56 × 9 = 648/504 - Likewise, for the 2nd fraction, since 63 × 8 = 504,
84/63 = 84 × 8/63 × 8 = 672/504 - Add the two like fractions:
648/504 + 672/504 = 648 + 672/504 = 1320/504 - 1320/504 simplified gives 55/21
- So, 72/56 + 84/63 = 55/21
In mixed form: 213/21
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