Add 81/42 and 36/35, Solve 1 39/42 + 1 1/35 as a fraction

Add 81/42 and 36/35

1^st number: 1 39/42, 2^nd number: 1 1/35

81/42 + 36/35 is 207/70.

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

Next, find the equivalent fraction of both fractional numbers with denominator 210
For the 1st fraction, since 42 × 5 = 210,
81/42 = 81 × 5/42 × 5 = 405/210
Likewise, for the 2nd fraction, since 35 × 6 = 210,
36/35 = 36 × 6/35 × 6 = 216/210
Add the two like fractions:
405/210 + 216/210 = 405 + 216/210 = 621/210
621/210 simplified gives 207/70
So, 81/42 + 36/35 = 207/70
In mixed form: 267/70

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