Add 21/3 and 72/10, Solve 7 0/3 + 7 2/10 as a fraction

Add 21/3 and 72/10

1^st number: 7 0/3, 2^nd number: 7 2/10

21/3 + 72/10 is 71/5.

Find the least common denominator or LCM of the two denominators:
LCM of 3 and 10 is 30

Next, find the equivalent fraction of both fractional numbers with denominator 30
For the 1st fraction, since 3 × 10 = 30,
21/3 = 21 × 10/3 × 10 = 210/30
Likewise, for the 2nd fraction, since 10 × 3 = 30,
72/10 = 72 × 3/10 × 3 = 216/30
Add the two like fractions:
210/30 + 216/30 = 210 + 216/30 = 426/30
426/30 simplified gives 71/5
So, 21/3 + 72/10 = 71/5
In mixed form: 141/5

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