Add 15/90 and 5/20
15/90 + 5/20 is 5/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 20 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 90 × 2 = 180,
15/90 = 15 × 2/90 × 2 = 30/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
5/20 = 5 × 9/20 × 9 = 45/180 - Add the two like fractions:
30/180 + 45/180 = 30 + 45/180 = 75/180 - 75/180 simplified gives 5/12
- So, 15/90 + 5/20 = 5/12
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