Add 40/28 and 36/40
1st number: 1 12/28, 2nd number: 36/40
40/28 + 36/40 is 163/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 40 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 28 × 10 = 280,
40/28 = 40 × 10/28 × 10 = 400/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
36/40 = 36 × 7/40 × 7 = 252/280 - Add the two like fractions:
400/280 + 252/280 = 400 + 252/280 = 652/280 - 652/280 simplified gives 163/70
- So, 40/28 + 36/40 = 163/70
In mixed form: 223/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/28+36/40 40/28+72/40 40/56+36/40 40/28+36/80 40/84+36/40