Add 7/28 and 40/35
1st number: 7/28, 2nd number: 1 5/35
7/28 + 40/35 is 39/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 35 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 28 × 5 = 140,
7/28 = 7 × 5/28 × 5 = 35/140 - Likewise, for the 2nd fraction, since 35 × 4 = 140,
40/35 = 40 × 4/35 × 4 = 160/140 - Add the two like fractions:
35/140 + 160/140 = 35 + 160/140 = 195/140 - 195/140 simplified gives 39/28
- So, 7/28 + 40/35 = 39/28
In mixed form: 111/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/28+40/35 7/28+80/35 7/56+40/35 7/28+40/70 21/28+40/35 7/84+40/35 35/28+40/35 49/28+40/35