Add 81/35 and 40/42, Solve 2 11/35 + 40/42 as a fraction

Add 81/35 and 40/42

1^st number: 2 11/35, 2^nd number: 40/42

81/35 + 40/42 is 49/15.

Find the least common denominator or LCM of the two denominators:
LCM of 35 and 42 is 210

Next, find the equivalent fraction of both fractional numbers with denominator 210
For the 1st fraction, since 35 × 6 = 210,
81/35 = 81 × 6/35 × 6 = 486/210
Likewise, for the 2nd fraction, since 42 × 5 = 210,
40/42 = 40 × 5/42 × 5 = 200/210
Add the two like fractions:
486/210 + 200/210 = 486 + 200/210 = 686/210
686/210 simplified gives 49/15
So, 81/35 + 40/42 = 49/15
In mixed form: 34/15

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