Add 9/72 and 15/21
9/72 + 15/21 is 47/56.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 21 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 72 × 7 = 504,
9/72 = 9 × 7/72 × 7 = 63/504 - Likewise, for the 2nd fraction, since 21 × 24 = 504,
15/21 = 15 × 24/21 × 24 = 360/504 - Add the two like fractions:
63/504 + 360/504 = 63 + 360/504 = 423/504 - 423/504 simplified gives 47/56
- So, 9/72 + 15/21 = 47/56
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