Add 15/72 and 45/56
15/72 + 45/56 is 85/84.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 56 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 72 × 7 = 504,
15/72 = 15 × 7/72 × 7 = 105/504 - Likewise, for the 2nd fraction, since 56 × 9 = 504,
45/56 = 45 × 9/56 × 9 = 405/504 - Add the two like fractions:
105/504 + 405/504 = 105 + 405/504 = 510/504 - 510/504 simplified gives 85/84
- So, 15/72 + 45/56 = 85/84
In mixed form: 11/84
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