Add 21/24 and 64/90
21/24 + 64/90 is 571/360.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 90 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 24 × 15 = 360,
21/24 = 21 × 15/24 × 15 = 315/360 - Likewise, for the 2nd fraction, since 90 × 4 = 360,
64/90 = 64 × 4/90 × 4 = 256/360 - Add the two like fractions:
315/360 + 256/360 = 315 + 256/360 = 571/360 - So, 21/24 + 64/90 = 571/360
In mixed form: 1211/360
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