Add 21/27 and 25/60
21/27 + 25/60 is 43/36.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 60 is 540
Next, find the equivalent fraction of both fractional numbers with denominator 540 - For the 1st fraction, since 27 × 20 = 540,
21/27 = 21 × 20/27 × 20 = 420/540 - Likewise, for the 2nd fraction, since 60 × 9 = 540,
25/60 = 25 × 9/60 × 9 = 225/540 - Add the two like fractions:
420/540 + 225/540 = 420 + 225/540 = 645/540 - 645/540 simplified gives 43/36
- So, 21/27 + 25/60 = 43/36
In mixed form: 17/36
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