Add 42/24 and 45/28
1st number: 1 18/24, 2nd number: 1 17/28
42/24 + 45/28 is 47/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 28 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 24 × 7 = 168,
42/24 = 42 × 7/24 × 7 = 294/168 - Likewise, for the 2nd fraction, since 28 × 6 = 168,
45/28 = 45 × 6/28 × 6 = 270/168 - Add the two like fractions:
294/168 + 270/168 = 294 + 270/168 = 564/168 - 564/168 simplified gives 47/14
- So, 42/24 + 45/28 = 47/14
In mixed form: 35/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/24+45/28 42/24+90/28 42/48+45/28 42/24+45/56 42/72+45/28 42/24+45/84