Add 27/90 and 2/20
27/90 + 2/20 is 2/5.
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,
27/90 = 27 × 2/90 × 2 = 54/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
2/20 = 2 × 9/20 × 9 = 18/180 - Add the two like fractions:
54/180 + 18/180 = 54 + 18/180 = 72/180 - 72/180 simplified gives 2/5
- So, 27/90 + 2/20 = 2/5
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