Add 10/70 and 42/18, Solve 10/70 + 2 6/18 as a fraction

Add 10/70 and 42/18

1^st number: 10/70, 2^nd number: 2 6/18

10/70 + 42/18 is 52/21.

Find the least common denominator or LCM of the two denominators:
LCM of 70 and 18 is 630

Next, find the equivalent fraction of both fractional numbers with denominator 630
For the 1st fraction, since 70 × 9 = 630,
10/70 = 10 × 9/70 × 9 = 90/630
Likewise, for the 2nd fraction, since 18 × 35 = 630,
42/18 = 42 × 35/18 × 35 = 1470/630
Add the two like fractions:
90/630 + 1470/630 = 90 + 1470/630 = 1560/630
1560/630 simplified gives 52/21
So, 10/70 + 42/18 = 52/21
In mixed form: 210/21

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