Add 70/72 and 81/84
70/72 + 81/84 is 122/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 84 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 72 × 7 = 504,
70/72 = 70 × 7/72 × 7 = 490/504 - Likewise, for the 2nd fraction, since 84 × 6 = 504,
81/84 = 81 × 6/84 × 6 = 486/504 - Add the two like fractions:
490/504 + 486/504 = 490 + 486/504 = 976/504 - 976/504 simplified gives 122/63
- So, 70/72 + 81/84 = 122/63
In mixed form: 159/63
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