Add 15/4 and 42/25
1st number: 3 3/4, 2nd number: 1 17/25
15/4 + 42/25 is 543/100.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 25 is 100
Next, find the equivalent fraction of both fractional numbers with denominator 100 - For the 1st fraction, since 4 × 25 = 100,
15/4 = 15 × 25/4 × 25 = 375/100 - Likewise, for the 2nd fraction, since 25 × 4 = 100,
42/25 = 42 × 4/25 × 4 = 168/100 - Add the two like fractions:
375/100 + 168/100 = 375 + 168/100 = 543/100 - So, 15/4 + 42/25 = 543/100
In mixed form: 543/100
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/4+42/25 15/4+84/25 15/8+42/25 15/4+42/50 45/4+42/25 15/12+42/25 15/4+42/75 75/4+42/25 15/20+42/25 15/28+42/25