Add 40/42 and 12/10, Solve 40/42 + 1 2/10 as a fraction

Add 40/42 and 12/10

1^st number: 40/42, 2^nd number: 1 2/10

40/42 + 12/10 is 226/105.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 10 is 210

Next, find the equivalent fraction of both fractional numbers with denominator 210
For the 1st fraction, since 42 × 5 = 210,
40/42 = 40 × 5/42 × 5 = 200/210
Likewise, for the 2nd fraction, since 10 × 21 = 210,
12/10 = 12 × 21/10 × 21 = 252/210
Add the two like fractions:
200/210 + 252/210 = 200 + 252/210 = 452/210
452/210 simplified gives 226/105
So, 40/42 + 12/10 = 226/105
In mixed form: 216/105

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