Add 40/75 and 72/9, Solve 40/75 + 8 0/9 as a fraction

Add 40/75 and 72/9

1^st number: 40/75, 2^nd number: 8 0/9

40/75 + 72/9 is 128/15.

Find the least common denominator or LCM of the two denominators:
LCM of 75 and 9 is 225

Next, find the equivalent fraction of both fractional numbers with denominator 225
For the 1st fraction, since 75 × 3 = 225,
40/75 = 40 × 3/75 × 3 = 120/225
Likewise, for the 2nd fraction, since 9 × 25 = 225,
72/9 = 72 × 25/9 × 25 = 1800/225
Add the two like fractions:
120/225 + 1800/225 = 120 + 1800/225 = 1920/225
1920/225 simplified gives 128/15
So, 40/75 + 72/9 = 128/15
In mixed form: 88/15

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad