Add 72/90 and 9/10
72/90 + 9/10 is 17/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 10 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 90 × 1 = 90,
72/90 = 72 × 1/90 × 1 = 72/90 - Likewise, for the 2nd fraction, since 10 × 9 = 90,
9/10 = 9 × 9/10 × 9 = 81/90 - Add the two like fractions:
72/90 + 81/90 = 72 + 81/90 = 153/90 - 153/90 simplified gives 17/10
- So, 72/90 + 9/10 = 17/10
In mixed form: 17/10
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