Add 40/21 and 27/70, Solve 1 19/21 + 27/70 as a fraction

Add 40/21 and 27/70

1^st number: 1 19/21, 2^nd number: 27/70

40/21 + 27/70 is 481/210.

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 70 is 210

Next, find the equivalent fraction of both fractional numbers with denominator 210
For the 1st fraction, since 21 × 10 = 210,
40/21 = 40 × 10/21 × 10 = 400/210
Likewise, for the 2nd fraction, since 70 × 3 = 210,
27/70 = 27 × 3/70 × 3 = 81/210
Add the two like fractions:
400/210 + 81/210 = 400 + 81/210 = 481/210
So, 40/21 + 27/70 = 481/210
In mixed form: 261/210

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