Add 42/28 and 15/8
1st number: 1 14/28, 2nd number: 1 7/8
42/28 + 15/8 is 27/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 8 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 28 × 2 = 56,
42/28 = 42 × 2/28 × 2 = 84/56 - Likewise, for the 2nd fraction, since 8 × 7 = 56,
15/8 = 15 × 7/8 × 7 = 105/56 - Add the two like fractions:
84/56 + 105/56 = 84 + 105/56 = 189/56 - 189/56 simplified gives 27/8
- So, 42/28 + 15/8 = 27/8
In mixed form: 33/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/28+15/8 42/28+30/8 42/56+15/8 42/28+15/16 42/28+45/8 42/84+15/8 42/28+15/24 42/28+75/8 42/28+15/40 42/28+15/56