Add 90/42 and 49/81
1st number: 2 6/42, 2nd number: 49/81
90/42 + 49/81 is 1558/567.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 81 is 1134
Next, find the equivalent fraction of both fractional numbers with denominator 1134 - For the 1st fraction, since 42 × 27 = 1134,
90/42 = 90 × 27/42 × 27 = 2430/1134 - Likewise, for the 2nd fraction, since 81 × 14 = 1134,
49/81 = 49 × 14/81 × 14 = 686/1134 - Add the two like fractions:
2430/1134 + 686/1134 = 2430 + 686/1134 = 3116/1134 - 3116/1134 simplified gives 1558/567
- So, 90/42 + 49/81 = 1558/567
In mixed form: 2424/567
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