Add 81/2 and 90/28
1st number: 40 1/2, 2nd number: 3 6/28
81/2 + 90/28 is 306/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 28 is 28
Next, find the equivalent fraction of both fractional numbers with denominator 28 - For the 1st fraction, since 2 × 14 = 28,
81/2 = 81 × 14/2 × 14 = 1134/28 - Likewise, for the 2nd fraction, since 28 × 1 = 28,
90/28 = 90 × 1/28 × 1 = 90/28 - Add the two like fractions:
1134/28 + 90/28 = 1134 + 90/28 = 1224/28 - 1224/28 simplified gives 306/7
- So, 81/2 + 90/28 = 306/7
In mixed form: 435/7
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