Add 15/42 and 18/24
15/42 + 18/24 is 31/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 24 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 42 × 4 = 168,
15/42 = 15 × 4/42 × 4 = 60/168 - Likewise, for the 2nd fraction, since 24 × 7 = 168,
18/24 = 18 × 7/24 × 7 = 126/168 - Add the two like fractions:
60/168 + 126/168 = 60 + 126/168 = 186/168 - 186/168 simplified gives 31/28
- So, 15/42 + 18/24 = 31/28
In mixed form: 13/28
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