Add 3/72 and 15/42
3/72 + 15/42 is 67/168.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 42 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 72 × 7 = 504,
3/72 = 3 × 7/72 × 7 = 21/504 - Likewise, for the 2nd fraction, since 42 × 12 = 504,
15/42 = 15 × 12/42 × 12 = 180/504 - Add the two like fractions:
21/504 + 180/504 = 21 + 180/504 = 201/504 - 201/504 simplified gives 67/168
- So, 3/72 + 15/42 = 67/168
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