Add 7/90 and 9/20
7/90 + 9/20 is 19/36.
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,
7/90 = 7 × 2/90 × 2 = 14/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
9/20 = 9 × 9/20 × 9 = 81/180 - Add the two like fractions:
14/180 + 81/180 = 14 + 81/180 = 95/180 - 95/180 simplified gives 19/36
- So, 7/90 + 9/20 = 19/36
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