Add 6/28 and 81/90
6/28 + 81/90 is 39/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 90 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 28 × 45 = 1260,
6/28 = 6 × 45/28 × 45 = 270/1260 - Likewise, for the 2nd fraction, since 90 × 14 = 1260,
81/90 = 81 × 14/90 × 14 = 1134/1260 - Add the two like fractions:
270/1260 + 1134/1260 = 270 + 1134/1260 = 1404/1260 - 1404/1260 simplified gives 39/35
- So, 6/28 + 81/90 = 39/35
In mixed form: 14/35
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