Add 6/21 and 35/5, Solve 6/21 + 7 0/5 as a fraction

Add 6/21 and 35/5

1^st number: 6/21, 2^nd number: 7 0/5

6/21 + 35/5 is 51/7.

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 5 is 105

Next, find the equivalent fraction of both fractional numbers with denominator 105
For the 1st fraction, since 21 × 5 = 105,
6/21 = 6 × 5/21 × 5 = 30/105
Likewise, for the 2nd fraction, since 5 × 21 = 105,
35/5 = 35 × 21/5 × 21 = 735/105
Add the two like fractions:
30/105 + 735/105 = 30 + 735/105 = 765/105
765/105 simplified gives 51/7
So, 6/21 + 35/5 = 51/7
In mixed form: 72/7

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