Add 90/4 and 81/72
1st number: 22 2/4, 2nd number: 1 9/72
90/4 + 81/72 is 189/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 72 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 4 × 18 = 72,
90/4 = 90 × 18/4 × 18 = 1620/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
81/72 = 81 × 1/72 × 1 = 81/72 - Add the two like fractions:
1620/72 + 81/72 = 1620 + 81/72 = 1701/72 - 1701/72 simplified gives 189/8
- So, 90/4 + 81/72 = 189/8
In mixed form: 235/8
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