Add 40/42 and 28/27, Solve 40/42 + 1 1/27 as a fraction

Add 40/42 and 28/27

1^st number: 40/42, 2^nd number: 1 1/27

40/42 + 28/27 is 376/189.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 27 is 378

Next, find the equivalent fraction of both fractional numbers with denominator 378
For the 1st fraction, since 42 × 9 = 378,
40/42 = 40 × 9/42 × 9 = 360/378
Likewise, for the 2nd fraction, since 27 × 14 = 378,
28/27 = 28 × 14/27 × 14 = 392/378
Add the two like fractions:
360/378 + 392/378 = 360 + 392/378 = 752/378
752/378 simplified gives 376/189
So, 40/42 + 28/27 = 376/189
In mixed form: 1187/189

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