Add 25/7 and 21/9, Solve 3 4/7 + 2 3/9 as a fraction

Add 25/7 and 21/9

1^st number: 3 4/7, 2^nd number: 2 3/9

25/7 + 21/9 is 124/21.

Find the least common denominator or LCM of the two denominators:
LCM of 7 and 9 is 63

Next, find the equivalent fraction of both fractional numbers with denominator 63
For the 1st fraction, since 7 × 9 = 63,
25/7 = 25 × 9/7 × 9 = 225/63
Likewise, for the 2nd fraction, since 9 × 7 = 63,
21/9 = 21 × 7/9 × 7 = 147/63
Add the two like fractions:
225/63 + 147/63 = 225 + 147/63 = 372/63
372/63 simplified gives 124/21
So, 25/7 + 21/9 = 124/21
In mixed form: 519/21

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