Add 70/21 and 1/27, Solve 3 7/21 + 1/27 as a fraction

Add 70/21 and 1/27

1^st number: 3 7/21, 2^nd number: 1/27

70/21 + 1/27 is 91/27.

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 27 is 189

Next, find the equivalent fraction of both fractional numbers with denominator 189
For the 1st fraction, since 21 × 9 = 189,
70/21 = 70 × 9/21 × 9 = 630/189
Likewise, for the 2nd fraction, since 27 × 7 = 189,
1/27 = 1 × 7/27 × 7 = 7/189
Add the two like fractions:
630/189 + 7/189 = 630 + 7/189 = 637/189
637/189 simplified gives 91/27
So, 70/21 + 1/27 = 91/27
In mixed form: 310/27

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