Add 21/14 and 84/72
1st number: 1 7/14, 2nd number: 1 12/72
21/14 + 84/72 is 8/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 72 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 14 × 36 = 504,
21/14 = 21 × 36/14 × 36 = 756/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
84/72 = 84 × 7/72 × 7 = 588/504 - Add the two like fractions:
756/504 + 588/504 = 756 + 588/504 = 1344/504 - 1344/504 simplified gives 8/3
- So, 21/14 + 84/72 = 8/3
In mixed form: 22/3
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