Add 18/72 and 12/42
18/72 + 12/42 is 15/28.
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,
18/72 = 18 × 7/72 × 7 = 126/504 - Likewise, for the 2nd fraction, since 42 × 12 = 504,
12/42 = 12 × 12/42 × 12 = 144/504 - Add the two like fractions:
126/504 + 144/504 = 126 + 144/504 = 270/504 - 270/504 simplified gives 15/28
- So, 18/72 + 12/42 = 15/28
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