Add 45/4 and 42/7
1st number: 11 1/4, 2nd number: 6 0/7
45/4 + 42/7 is 69/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 7 is 28
Next, find the equivalent fraction of both fractional numbers with denominator 28 - For the 1st fraction, since 4 × 7 = 28,
45/4 = 45 × 7/4 × 7 = 315/28 - Likewise, for the 2nd fraction, since 7 × 4 = 28,
42/7 = 42 × 4/7 × 4 = 168/28 - Add the two like fractions:
315/28 + 168/28 = 315 + 168/28 = 483/28 - 483/28 simplified gives 69/4
- So, 45/4 + 42/7 = 69/4
In mixed form: 171/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/4+42/7 45/4+84/7 45/8+42/7 45/4+42/14 45/12+42/7 45/4+42/21 45/20+42/7 45/4+42/35 45/28+42/7 45/4+42/49