Add 35/28 and 42/70
1st number: 1 7/28, 2nd number: 42/70
35/28 + 42/70 is 37/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 70 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 28 × 5 = 140,
35/28 = 35 × 5/28 × 5 = 175/140 - Likewise, for the 2nd fraction, since 70 × 2 = 140,
42/70 = 42 × 2/70 × 2 = 84/140 - Add the two like fractions:
175/140 + 84/140 = 175 + 84/140 = 259/140 - 259/140 simplified gives 37/20
- So, 35/28 + 42/70 = 37/20
In mixed form: 117/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/28+42/70 35/28+84/70 35/56+42/70 35/84+42/70