Add 81/42 and 70/56, Solve 1 39/42 + 1 14/56 as a fraction

Add 81/42 and 70/56

1^st number: 1 39/42, 2^nd number: 1 14/56

81/42 + 70/56 is 89/28.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 56 is 168

Next, find the equivalent fraction of both fractional numbers with denominator 168
For the 1st fraction, since 42 × 4 = 168,
81/42 = 81 × 4/42 × 4 = 324/168
Likewise, for the 2nd fraction, since 56 × 3 = 168,
70/56 = 70 × 3/56 × 3 = 210/168
Add the two like fractions:
324/168 + 210/168 = 324 + 210/168 = 534/168
534/168 simplified gives 89/28
So, 81/42 + 70/56 = 89/28
In mixed form: 35/28

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