Add 7/90 and 8/20
7/90 + 8/20 is 43/90.
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,
8/20 = 8 × 9/20 × 9 = 72/180 - Add the two like fractions:
14/180 + 72/180 = 14 + 72/180 = 86/180 - 86/180 simplified gives 43/90
- So, 7/90 + 8/20 = 43/90
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