Add 1/5 and 42/28
1st number: 1/5, 2nd number: 1 14/28
1/5 + 42/28 is 17/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 28 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 5 × 28 = 140,
1/5 = 1 × 28/5 × 28 = 28/140 - Likewise, for the 2nd fraction, since 28 × 5 = 140,
42/28 = 42 × 5/28 × 5 = 210/140 - Add the two like fractions:
28/140 + 210/140 = 28 + 210/140 = 238/140 - 238/140 simplified gives 17/10
- So, 1/5 + 42/28 = 17/10
In mixed form: 17/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/5+42/28 1/5+84/28 1/10+42/28 1/5+42/56 3/5+42/28 1/15+42/28 1/5+42/84 1/25+42/28 7/5+42/28 1/35+42/28