Add 40/28 and 18/7
1st number: 1 12/28, 2nd number: 2 4/7
40/28 + 18/7 is 4/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 7 is 28
Next, find the equivalent fraction of both fractional numbers with denominator 28 - For the 1st fraction, since 28 × 1 = 28,
40/28 = 40 × 1/28 × 1 = 40/28 - Likewise, for the 2nd fraction, since 7 × 4 = 28,
18/7 = 18 × 4/7 × 4 = 72/28 - Add the two like fractions:
40/28 + 72/28 = 40 + 72/28 = 112/28 - 112/28 simplified gives 4/1
- So, 40/28 + 18/7 = 4/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/28+18/7 40/28+36/7 40/56+18/7 40/28+18/14 40/28+54/7 40/84+18/7 40/28+18/21 40/28+90/7 40/28+18/35 40/28+18/49