Add 90/42 and 80/70, Solve 2 6/42 + 1 10/70 as a fraction

Add 90/42 and 80/70

1^st number: 2 6/42, 2^nd number: 1 10/70

90/42 + 80/70 is 23/7.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 70 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 70 × 3 = 210,
80/70 = 80 × 3/70 × 3 = 240/210
Add the two like fractions:
450/210 + 240/210 = 450 + 240/210 = 690/210
690/210 simplified gives 23/7
So, 90/42 + 80/70 = 23/7
In mixed form: 32/7

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