Add 7/28 and 84/72
1st number: 7/28, 2nd number: 1 12/72
7/28 + 84/72 is 17/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 72 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 28 × 18 = 504,
7/28 = 7 × 18/28 × 18 = 126/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
84/72 = 84 × 7/72 × 7 = 588/504 - Add the two like fractions:
126/504 + 588/504 = 126 + 588/504 = 714/504 - 714/504 simplified gives 17/12
- So, 7/28 + 84/72 = 17/12
In mixed form: 15/12
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