Add 1/5 and 42/7
1st number: 1/5, 2nd number: 6 0/7
1/5 + 42/7 is 31/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 7 is 35
Next, find the equivalent fraction of both fractional numbers with denominator 35 - For the 1st fraction, since 5 × 7 = 35,
1/5 = 1 × 7/5 × 7 = 7/35 - Likewise, for the 2nd fraction, since 7 × 5 = 35,
42/7 = 42 × 5/7 × 5 = 210/35 - Add the two like fractions:
7/35 + 210/35 = 7 + 210/35 = 217/35 - 217/35 simplified gives 31/5
- So, 1/5 + 42/7 = 31/5
In mixed form: 61/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/5+42/7 1/5+84/7 1/10+42/7 1/5+42/14 3/5+42/7 1/15+42/7 1/5+42/21 1/25+42/7 1/5+42/35 7/5+42/7 1/35+42/7 1/5+42/49