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

Add 6/70 and 90/42

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

6/70 + 90/42 is 78/35.

Find the least common denominator or LCM of the two denominators:
LCM of 70 and 42 is 210

Next, find the equivalent fraction of both fractional numbers with denominator 210
For the 1st fraction, since 70 × 3 = 210,
6/70 = 6 × 3/70 × 3 = 18/210
Likewise, for the 2nd fraction, since 42 × 5 = 210,
90/42 = 90 × 5/42 × 5 = 450/210
Add the two like fractions:
18/210 + 450/210 = 18 + 450/210 = 468/210
468/210 simplified gives 78/35
So, 6/70 + 90/42 = 78/35
In mixed form: 28/35

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