Add 15/72 and 18/42
15/72 + 18/42 is 107/168.
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,
15/72 = 15 × 7/72 × 7 = 105/504 - Likewise, for the 2nd fraction, since 42 × 12 = 504,
18/42 = 18 × 12/42 × 12 = 216/504 - Add the two like fractions:
105/504 + 216/504 = 105 + 216/504 = 321/504 - 321/504 simplified gives 107/168
- So, 15/72 + 18/42 = 107/168
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