Add 42/9 and 21/25, Solve 4 6/9 + 21/25 as a fraction

Add 42/9 and 21/25

1^st number: 4 6/9, 2^nd number: 21/25

42/9 + 21/25 is 413/75.

Find the least common denominator or LCM of the two denominators:
LCM of 9 and 25 is 225

Next, find the equivalent fraction of both fractional numbers with denominator 225
For the 1st fraction, since 9 × 25 = 225,
42/9 = 42 × 25/9 × 25 = 1050/225
Likewise, for the 2nd fraction, since 25 × 9 = 225,
21/25 = 21 × 9/25 × 9 = 189/225
Add the two like fractions:
1050/225 + 189/225 = 1050 + 189/225 = 1239/225
1239/225 simplified gives 413/75
So, 42/9 + 21/25 = 413/75
In mixed form: 538/75

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