Add 40/42 and 28/16, Solve 40/42 + 1 12/16 as a fraction

Add 40/42 and 28/16

1^st number: 40/42, 2^nd number: 1 12/16

40/42 + 28/16 is 227/84.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 16 is 336

Next, find the equivalent fraction of both fractional numbers with denominator 336
For the 1st fraction, since 42 × 8 = 336,
40/42 = 40 × 8/42 × 8 = 320/336
Likewise, for the 2nd fraction, since 16 × 21 = 336,
28/16 = 28 × 21/16 × 21 = 588/336
Add the two like fractions:
320/336 + 588/336 = 320 + 588/336 = 908/336
908/336 simplified gives 227/84
So, 40/42 + 28/16 = 227/84
In mixed form: 259/84

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