Add 21/90 and 1/5
21/90 + 1/5 is 13/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 5 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 90 × 1 = 90,
21/90 = 21 × 1/90 × 1 = 21/90 - Likewise, for the 2nd fraction, since 5 × 18 = 90,
1/5 = 1 × 18/5 × 18 = 18/90 - Add the two like fractions:
21/90 + 18/90 = 21 + 18/90 = 39/90 - 39/90 simplified gives 13/30
- So, 21/90 + 1/5 = 13/30
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