Add 28/56 and 42/35
1st number: 28/56, 2nd number: 1 7/35
28/56 + 42/35 is 17/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 35 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 56 × 5 = 280,
28/56 = 28 × 5/56 × 5 = 140/280 - Likewise, for the 2nd fraction, since 35 × 8 = 280,
42/35 = 42 × 8/35 × 8 = 336/280 - Add the two like fractions:
140/280 + 336/280 = 140 + 336/280 = 476/280 - 476/280 simplified gives 17/10
- So, 28/56 + 42/35 = 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: 28/56+84/35 28/56+42/70 84/56+42/35