Add 42/5 and 28/7
1st number: 8 2/5, 2nd number: 4 0/7
42/5 + 28/7 is 62/5.
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,
42/5 = 42 × 7/5 × 7 = 294/35 - Likewise, for the 2nd fraction, since 7 × 5 = 35,
28/7 = 28 × 5/7 × 5 = 140/35 - Add the two like fractions:
294/35 + 140/35 = 294 + 140/35 = 434/35 - 434/35 simplified gives 62/5
- So, 42/5 + 28/7 = 62/5
In mixed form: 122/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/5+28/7 42/5+56/7 42/10+28/7 42/5+28/14 42/5+84/7 42/15+28/7 42/5+28/21 42/25+28/7 42/5+28/35 42/35+28/7 42/5+28/49