Add 70/42 and 56/81, Solve 1 28/42 + 56/81 as a fraction

Add 70/42 and 56/81

1^st number: 1 28/42, 2^nd number: 56/81

70/42 + 56/81 is 191/81.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 81 is 1134

Next, find the equivalent fraction of both fractional numbers with denominator 1134
For the 1st fraction, since 42 × 27 = 1134,
70/42 = 70 × 27/42 × 27 = 1890/1134
Likewise, for the 2nd fraction, since 81 × 14 = 1134,
56/81 = 56 × 14/81 × 14 = 784/1134
Add the two like fractions:
1890/1134 + 784/1134 = 1890 + 784/1134 = 2674/1134
2674/1134 simplified gives 191/81
So, 70/42 + 56/81 = 191/81
In mixed form: 229/81

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