Add 21/27 and 60/72
21/27 + 60/72 is 29/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 72 is 216
Next, find the equivalent fraction of both fractional numbers with denominator 216 - For the 1st fraction, since 27 × 8 = 216,
21/27 = 21 × 8/27 × 8 = 168/216 - Likewise, for the 2nd fraction, since 72 × 3 = 216,
60/72 = 60 × 3/72 × 3 = 180/216 - Add the two like fractions:
168/216 + 180/216 = 168 + 180/216 = 348/216 - 348/216 simplified gives 29/18
- So, 21/27 + 60/72 = 29/18
In mixed form: 111/18
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