Add 81/42 and 27/60, Solve 1 39/42 + 27/60 as a fraction

Add 81/42 and 27/60

1^st number: 1 39/42, 2^nd number: 27/60

81/42 + 27/60 is 333/140.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 60 is 420

Next, find the equivalent fraction of both fractional numbers with denominator 420
For the 1st fraction, since 42 × 10 = 420,
81/42 = 81 × 10/42 × 10 = 810/420
Likewise, for the 2nd fraction, since 60 × 7 = 420,
27/60 = 27 × 7/60 × 7 = 189/420
Add the two like fractions:
810/420 + 189/420 = 810 + 189/420 = 999/420
999/420 simplified gives 333/140
So, 81/42 + 27/60 = 333/140
In mixed form: 253/140

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