Add 42/35 and 28/60
1st number: 1 7/35, 2nd number: 28/60
42/35 + 28/60 is 5/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 60 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 35 × 12 = 420,
42/35 = 42 × 12/35 × 12 = 504/420 - Likewise, for the 2nd fraction, since 60 × 7 = 420,
28/60 = 28 × 7/60 × 7 = 196/420 - Add the two like fractions:
504/420 + 196/420 = 504 + 196/420 = 700/420 - 700/420 simplified gives 5/3
- So, 42/35 + 28/60 = 5/3
In mixed form: 12/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/35+28/60 42/35+56/60 42/70+28/60 42/35+84/60