Add 15/4 and 42/75
1st number: 3 3/4, 2nd number: 42/75
15/4 + 42/75 is 431/100.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 75 is 300
Next, find the equivalent fraction of both fractional numbers with denominator 300 - For the 1st fraction, since 4 × 75 = 300,
15/4 = 15 × 75/4 × 75 = 1125/300 - Likewise, for the 2nd fraction, since 75 × 4 = 300,
42/75 = 42 × 4/75 × 4 = 168/300 - Add the two like fractions:
1125/300 + 168/300 = 1125 + 168/300 = 1293/300 - 1293/300 simplified gives 431/100
- So, 15/4 + 42/75 = 431/100
In mixed form: 431/100
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/4+42/75 15/4+84/75 15/8+42/75 45/4+42/75 15/12+42/75 75/4+42/75 15/20+42/75 15/28+42/75