Add 42/9 and 15/25
1st number: 4 6/9, 2nd number: 15/25
42/9 + 15/25 is 79/15.
Steps for adding fractions
- 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,
15/25 = 15 × 9/25 × 9 = 135/225 - Add the two like fractions:
1050/225 + 135/225 = 1050 + 135/225 = 1185/225 - 1185/225 simplified gives 79/15
- So, 42/9 + 15/25 = 79/15
In mixed form: 54/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/9+15/25 42/9+30/25 42/18+15/25 42/9+15/50 42/9+45/25 42/27+15/25 42/9+15/75 42/9+75/25 42/45+15/25 42/63+15/25