Add 7/10 and 21/9, Solve 7/10 + 2 3/9 as a fraction

Add 7/10 and 21/9

1^st number: 7/10, 2^nd number: 2 3/9

7/10 + 21/9 is 91/30.

Find the least common denominator or LCM of the two denominators:
LCM of 10 and 9 is 90

Next, find the equivalent fraction of both fractional numbers with denominator 90
For the 1st fraction, since 10 × 9 = 90,
7/10 = 7 × 9/10 × 9 = 63/90
Likewise, for the 2nd fraction, since 9 × 10 = 90,
21/9 = 21 × 10/9 × 10 = 210/90
Add the two like fractions:
63/90 + 210/90 = 63 + 210/90 = 273/90
273/90 simplified gives 91/30
So, 7/10 + 21/9 = 91/30
In mixed form: 31/30

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