Add 27/60 and 21/40
27/60 + 21/40 is 39/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 60 × 2 = 120,
27/60 = 27 × 2/60 × 2 = 54/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
21/40 = 21 × 3/40 × 3 = 63/120 - Add the two like fractions:
54/120 + 63/120 = 54 + 63/120 = 117/120 - 117/120 simplified gives 39/40
- So, 27/60 + 21/40 = 39/40
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