Add 21/24 and 27/90
21/24 + 27/90 is 47/40.
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,
27/90 = 27 × 4/90 × 4 = 108/360 - Add the two like fractions:
315/360 + 108/360 = 315 + 108/360 = 423/360 - 423/360 simplified gives 47/40
- So, 21/24 + 27/90 = 47/40
In mixed form: 17/40
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