Add 15/84 and 7/72
15/84 + 7/72 is 139/504.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 72 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 84 × 6 = 504,
15/84 = 15 × 6/84 × 6 = 90/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
7/72 = 7 × 7/72 × 7 = 49/504 - Add the two like fractions:
90/504 + 49/504 = 90 + 49/504 = 139/504 - So, 15/84 + 7/72 = 139/504
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