Add 72/45 and 81/90
1st number: 1 27/45, 2nd number: 81/90
72/45 + 81/90 is 5/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 45 × 2 = 90,
72/45 = 72 × 2/45 × 2 = 144/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
81/90 = 81 × 1/90 × 1 = 81/90 - Add the two like fractions:
144/90 + 81/90 = 144 + 81/90 = 225/90 - 225/90 simplified gives 5/2
- So, 72/45 + 81/90 = 5/2
In mixed form: 21/2
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Related: 72/90+81/90