Add 45/4 and 42/28
1st number: 11 1/4, 2nd number: 1 14/28
45/4 + 42/28 is 51/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 28 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 28 × 1 = 28,
42/28 = 42 × 1/28 × 1 = 42/28 - Add the two like fractions:
315/28 + 42/28 = 315 + 42/28 = 357/28 - 357/28 simplified gives 51/4
- So, 45/4 + 42/28 = 51/4
In mixed form: 123/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/4+42/28 45/4+84/28 45/8+42/28 45/4+42/56 45/12+42/28 45/4+42/84 45/20+42/28 45/28+42/28