Add 15/21 and 3/72
15/21 + 3/72 is 127/168.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 72 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 21 × 24 = 504,
15/21 = 15 × 24/21 × 24 = 360/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
3/72 = 3 × 7/72 × 7 = 21/504 - Add the two like fractions:
360/504 + 21/504 = 360 + 21/504 = 381/504 - 381/504 simplified gives 127/168
- So, 15/21 + 3/72 = 127/168
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