Add 81/90 and 90/36
1st number: 81/90, 2nd number: 2 18/36
81/90 + 90/36 is 17/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 36 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 90 × 2 = 180,
81/90 = 81 × 2/90 × 2 = 162/180 - Likewise, for the 2nd fraction, since 36 × 5 = 180,
90/36 = 90 × 5/36 × 5 = 450/180 - Add the two like fractions:
162/180 + 450/180 = 162 + 450/180 = 612/180 - 612/180 simplified gives 17/5
- So, 81/90 + 90/36 = 17/5
In mixed form: 32/5
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