Add 70/21 and 25/10, Solve 3 7/21 + 2 5/10 as a fraction

Add 70/21 and 25/10

1^st number: 3 7/21, 2^nd number: 2 5/10

70/21 + 25/10 is 35/6.

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 10 is 210

Next, find the equivalent fraction of both fractional numbers with denominator 210
For the 1st fraction, since 21 × 10 = 210,
70/21 = 70 × 10/21 × 10 = 700/210
Likewise, for the 2nd fraction, since 10 × 21 = 210,
25/10 = 25 × 21/10 × 21 = 525/210
Add the two like fractions:
700/210 + 525/210 = 700 + 525/210 = 1225/210
1225/210 simplified gives 35/6
So, 70/21 + 25/10 = 35/6
In mixed form: 55/6

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