Add 20/24 and 21/90
20/24 + 21/90 is 16/15.
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,
20/24 = 20 × 15/24 × 15 = 300/360 - Likewise, for the 2nd fraction, since 90 × 4 = 360,
21/90 = 21 × 4/90 × 4 = 84/360 - Add the two like fractions:
300/360 + 84/360 = 300 + 84/360 = 384/360 - 384/360 simplified gives 16/15
- So, 20/24 + 21/90 = 16/15
In mixed form: 11/15
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