Add 21/54 and 30/60
21/54 + 30/60 is 8/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 60 is 540
Next, find the equivalent fraction of both fractional numbers with denominator 540 - For the 1st fraction, since 54 × 10 = 540,
21/54 = 21 × 10/54 × 10 = 210/540 - Likewise, for the 2nd fraction, since 60 × 9 = 540,
30/60 = 30 × 9/60 × 9 = 270/540 - Add the two like fractions:
210/540 + 270/540 = 210 + 270/540 = 480/540 - 480/540 simplified gives 8/9
- So, 21/54 + 30/60 = 8/9
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