Add 90/36 and 81/72
1st number: 2 18/36, 2nd number: 1 9/72
90/36 + 81/72 is 29/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 72 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 36 × 2 = 72,
90/36 = 90 × 2/36 × 2 = 180/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
81/72 = 81 × 1/72 × 1 = 81/72 - Add the two like fractions:
180/72 + 81/72 = 180 + 81/72 = 261/72 - 261/72 simplified gives 29/8
- So, 90/36 + 81/72 = 29/8
In mixed form: 35/8
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Related: 90/72+81/72