Add 21/90 and 56/24
1st number: 21/90, 2nd number: 2 8/24
21/90 + 56/24 is 77/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 24 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 90 × 4 = 360,
21/90 = 21 × 4/90 × 4 = 84/360 - Likewise, for the 2nd fraction, since 24 × 15 = 360,
56/24 = 56 × 15/24 × 15 = 840/360 - Add the two like fractions:
84/360 + 840/360 = 84 + 840/360 = 924/360 - 924/360 simplified gives 77/30
- So, 21/90 + 56/24 = 77/30
In mixed form: 217/30
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