Add 15/20 and 27/84
15/20 + 27/84 is 15/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 84 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 20 × 21 = 420,
15/20 = 15 × 21/20 × 21 = 315/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
27/84 = 27 × 5/84 × 5 = 135/420 - Add the two like fractions:
315/420 + 135/420 = 315 + 135/420 = 450/420 - 450/420 simplified gives 15/14
- So, 15/20 + 27/84 = 15/14
In mixed form: 11/14
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