Add 21/60 and 54/27
1st number: 21/60, 2nd number: 2 0/27
21/60 + 54/27 is 47/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 27 is 540
Next, find the equivalent fraction of both fractional numbers with denominator 540 - For the 1st fraction, since 60 × 9 = 540,
21/60 = 21 × 9/60 × 9 = 189/540 - Likewise, for the 2nd fraction, since 27 × 20 = 540,
54/27 = 54 × 20/27 × 20 = 1080/540 - Add the two like fractions:
189/540 + 1080/540 = 189 + 1080/540 = 1269/540 - 1269/540 simplified gives 47/20
- So, 21/60 + 54/27 = 47/20
In mixed form: 27/20
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