Add 18/7 and 20/30, Solve 2 4/7 + 20/30 as a fraction

Add 18/7 and 20/30

1^st number: 2 4/7, 2^nd number: 20/30

18/7 + 20/30 is 68/21.

Find the least common denominator or LCM of the two denominators:
LCM of 7 and 30 is 210

Next, find the equivalent fraction of both fractional numbers with denominator 210
For the 1st fraction, since 7 × 30 = 210,
18/7 = 18 × 30/7 × 30 = 540/210
Likewise, for the 2nd fraction, since 30 × 7 = 210,
20/30 = 20 × 7/30 × 7 = 140/210
Add the two like fractions:
540/210 + 140/210 = 540 + 140/210 = 680/210
680/210 simplified gives 68/21
So, 18/7 + 20/30 = 68/21
In mixed form: 35/21

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