Add 21/70 and 70/10, Solve 21/70 + 7 0/10 as a fraction

Add 21/70 and 70/10

1^st number: 21/70, 2^nd number: 7 0/10

21/70 + 70/10 is 73/10.

Find the least common denominator or LCM of the two denominators:
LCM of 70 and 10 is 70

Next, find the equivalent fraction of both fractional numbers with denominator 70
For the 1st fraction, since 70 × 1 = 70,
21/70 = 21 × 1/70 × 1 = 21/70
Likewise, for the 2nd fraction, since 10 × 7 = 70,
70/10 = 70 × 7/10 × 7 = 490/70
Add the two like fractions:
21/70 + 490/70 = 21 + 490/70 = 511/70
511/70 simplified gives 73/10
So, 21/70 + 70/10 = 73/10
In mixed form: 73/10

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