Add 20/7 and 75/40
1st number: 2 6/7, 2nd number: 1 35/40
20/7 + 75/40 is 265/56.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 40 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 7 × 40 = 280,
20/7 = 20 × 40/7 × 40 = 800/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
75/40 = 75 × 7/40 × 7 = 525/280 - Add the two like fractions:
800/280 + 525/280 = 800 + 525/280 = 1325/280 - 1325/280 simplified gives 265/56
- So, 20/7 + 75/40 = 265/56
In mixed form: 441/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/7+75/40 20/14+75/40 20/7+75/80 60/7+75/40 20/21+75/40 20/35+75/40 20/49+75/40