Add 27/21 and 9/30, Solve 1 6/21 + 9/30 as a fraction

Add 27/21 and 9/30

1^st number: 1 6/21, 2^nd number: 9/30

27/21 + 9/30 is 111/70.

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 30 is 210

Next, find the equivalent fraction of both fractional numbers with denominator 210
For the 1st fraction, since 21 × 10 = 210,
27/21 = 27 × 10/21 × 10 = 270/210
Likewise, for the 2nd fraction, since 30 × 7 = 210,
9/30 = 9 × 7/30 × 7 = 63/210
Add the two like fractions:
270/210 + 63/210 = 270 + 63/210 = 333/210
333/210 simplified gives 111/70
So, 27/21 + 9/30 = 111/70
In mixed form: 141/70

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