Add 2/20 and 1/90
2/20 + 1/90 is 1/9.
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,
2/20 = 2 × 9/20 × 9 = 18/180 - Likewise, for the 2nd fraction, since 90 × 2 = 180,
1/90 = 1 × 2/90 × 2 = 2/180 - Add the two like fractions:
18/180 + 2/180 = 18 + 2/180 = 20/180 - 20/180 simplified gives 1/9
- So, 2/20 + 1/90 = 1/9
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