Add 4/21 and 72/10, Solve 4/21 + 7 2/10 as a fraction

Add 4/21 and 72/10

1^st number: 4/21, 2^nd number: 7 2/10

4/21 + 72/10 is 776/105.

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,
4/21 = 4 × 10/21 × 10 = 40/210
Likewise, for the 2nd fraction, since 10 × 21 = 210,
72/10 = 72 × 21/10 × 21 = 1512/210
Add the two like fractions:
40/210 + 1512/210 = 40 + 1512/210 = 1552/210
1552/210 simplified gives 776/105
So, 4/21 + 72/10 = 776/105
In mixed form: 741/105

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