Add 50/70 and 42/18, Solve 50/70 + 2 6/18 as a fraction

Add 50/70 and 42/18

1^st number: 50/70, 2^nd number: 2 6/18

50/70 + 42/18 is 64/21.

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,
50/70 = 50 × 9/70 × 9 = 450/630
Likewise, for the 2nd fraction, since 18 × 35 = 630,
42/18 = 42 × 35/18 × 35 = 1470/630
Add the two like fractions:
450/630 + 1470/630 = 450 + 1470/630 = 1920/630
1920/630 simplified gives 64/21
So, 50/70 + 42/18 = 64/21
In mixed form: 31/21

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