Add 20/6 and 21/70, Solve 3 2/6 + 21/70 as a fraction

Add 20/6 and 21/70

1^st number: 3 2/6, 2^nd number: 21/70

20/6 + 21/70 is 109/30.

Find the least common denominator or LCM of the two denominators:
LCM of 6 and 70 is 210

Next, find the equivalent fraction of both fractional numbers with denominator 210
For the 1st fraction, since 6 × 35 = 210,
20/6 = 20 × 35/6 × 35 = 700/210
Likewise, for the 2nd fraction, since 70 × 3 = 210,
21/70 = 21 × 3/70 × 3 = 63/210
Add the two like fractions:
700/210 + 63/210 = 700 + 63/210 = 763/210
763/210 simplified gives 109/30
So, 20/6 + 21/70 = 109/30
In mixed form: 319/30

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