Add 45/28 and 50/40
1st number: 1 17/28, 2nd number: 1 10/40
45/28 + 50/40 is 20/7.
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,
45/28 = 45 × 10/28 × 10 = 450/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
50/40 = 50 × 7/40 × 7 = 350/280 - Add the two like fractions:
450/280 + 350/280 = 450 + 350/280 = 800/280 - 800/280 simplified gives 20/7
- So, 45/28 + 50/40 = 20/7
In mixed form: 26/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/28+50/40 45/56+50/40 45/28+50/80 45/84+50/40