Add 9/36 and 20/90
9/36 + 20/90 is 17/36.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 90 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 36 × 5 = 180,
9/36 = 9 × 5/36 × 5 = 45/180 - Likewise, for the 2nd fraction, since 90 × 2 = 180,
20/90 = 20 × 2/90 × 2 = 40/180 - Add the two like fractions:
45/180 + 40/180 = 45 + 40/180 = 85/180 - 85/180 simplified gives 17/36
- So, 9/36 + 20/90 = 17/36
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