Add 18/42 and 15/28
18/42 + 15/28 is 27/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 28 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 42 × 2 = 84,
18/42 = 18 × 2/42 × 2 = 36/84 - Likewise, for the 2nd fraction, since 28 × 3 = 84,
15/28 = 15 × 3/28 × 3 = 45/84 - Add the two like fractions:
36/84 + 45/84 = 36 + 45/84 = 81/84 - 81/84 simplified gives 27/28
- So, 18/42 + 15/28 = 27/28
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