Add 21/60 and 84/72
1st number: 21/60, 2nd number: 1 12/72
21/60 + 84/72 is 91/60.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 60 × 6 = 360,
21/60 = 21 × 6/60 × 6 = 126/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
84/72 = 84 × 5/72 × 5 = 420/360 - Add the two like fractions:
126/360 + 420/360 = 126 + 420/360 = 546/360 - 546/360 simplified gives 91/60
- So, 21/60 + 84/72 = 91/60
In mixed form: 131/60
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