Add 81/42 and 8/10, Solve 1 39/42 + 8/10 as a fraction

Add 81/42 and 8/10

1^st number: 1 39/42, 2^nd number: 8/10

81/42 + 8/10 is 191/70.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 10 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 10 × 21 = 210,
8/10 = 8 × 21/10 × 21 = 168/210
Add the two like fractions:
405/210 + 168/210 = 405 + 168/210 = 573/210
573/210 simplified gives 191/70
So, 81/42 + 8/10 = 191/70
In mixed form: 251/70

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