Add 15/20 and 3/90
15/20 + 3/90 is 47/60.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 90 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 20 × 9 = 180,
15/20 = 15 × 9/20 × 9 = 135/180 - Likewise, for the 2nd fraction, since 90 × 2 = 180,
3/90 = 3 × 2/90 × 2 = 6/180 - Add the two like fractions:
135/180 + 6/180 = 135 + 6/180 = 141/180 - 141/180 simplified gives 47/60
- So, 15/20 + 3/90 = 47/60
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