Add 9/60 and 81/90
9/60 + 81/90 is 21/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 90 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 60 × 3 = 180,
9/60 = 9 × 3/60 × 3 = 27/180 - Likewise, for the 2nd fraction, since 90 × 2 = 180,
81/90 = 81 × 2/90 × 2 = 162/180 - Add the two like fractions:
27/180 + 162/180 = 27 + 162/180 = 189/180 - 189/180 simplified gives 21/20
- So, 9/60 + 81/90 = 21/20
In mixed form: 11/20
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