Add 28/60 and 21/54
28/60 + 21/54 is 77/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 54 is 540
Next, find the equivalent fraction of both fractional numbers with denominator 540 - For the 1st fraction, since 60 × 9 = 540,
28/60 = 28 × 9/60 × 9 = 252/540 - Likewise, for the 2nd fraction, since 54 × 10 = 540,
21/54 = 21 × 10/54 × 10 = 210/540 - Add the two like fractions:
252/540 + 210/540 = 252 + 210/540 = 462/540 - 462/540 simplified gives 77/90
- So, 28/60 + 21/54 = 77/90
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