Add 42/8 and 7/28
1st number: 5 2/8, 2nd number: 7/28
42/8 + 7/28 is 11/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 28 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 8 × 7 = 56,
42/8 = 42 × 7/8 × 7 = 294/56 - Likewise, for the 2nd fraction, since 28 × 2 = 56,
7/28 = 7 × 2/28 × 2 = 14/56 - Add the two like fractions:
294/56 + 14/56 = 294 + 14/56 = 308/56 - 308/56 simplified gives 11/2
- So, 42/8 + 7/28 = 11/2
In mixed form: 51/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/8+7/28 42/8+14/28 42/16+7/28 42/8+7/56 42/8+21/28 42/24+7/28 42/8+7/84 42/8+35/28 42/40+7/28 42/8+49/28 42/56+7/28