Add 90/42 and 12/10, Solve 2 6/42 + 1 2/10 as a fraction

Add 90/42 and 12/10

1^st number: 2 6/42, 2^nd number: 1 2/10

90/42 + 12/10 is 117/35.

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,
90/42 = 90 × 5/42 × 5 = 450/210
Likewise, for the 2nd fraction, since 10 × 21 = 210,
12/10 = 12 × 21/10 × 21 = 252/210
Add the two like fractions:
450/210 + 252/210 = 450 + 252/210 = 702/210
702/210 simplified gives 117/35
So, 90/42 + 12/10 = 117/35
In mixed form: 312/35

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