Add 72/90 and 27/10
1st number: 72/90, 2nd number: 2 7/10
72/90 + 27/10 is 7/2.
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,
27/10 = 27 × 9/10 × 9 = 243/90 - Add the two like fractions:
72/90 + 243/90 = 72 + 243/90 = 315/90 - 315/90 simplified gives 7/2
- So, 72/90 + 27/10 = 7/2
In mixed form: 31/2
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