Add 75/4 and 20/7
1st number: 18 3/4, 2nd number: 2 6/7
75/4 + 20/7 is 605/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 7 is 28
Next, find the equivalent fraction of both fractional numbers with denominator 28 - For the 1st fraction, since 4 × 7 = 28,
75/4 = 75 × 7/4 × 7 = 525/28 - Likewise, for the 2nd fraction, since 7 × 4 = 28,
20/7 = 20 × 4/7 × 4 = 80/28 - Add the two like fractions:
525/28 + 80/28 = 525 + 80/28 = 605/28 - So, 75/4 + 20/7 = 605/28
In mixed form: 2117/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/4+40/7 75/8+20/7 75/4+20/14 75/4+60/7 75/12+20/7 75/4+20/21 75/20+20/7 75/4+20/35 75/28+20/7 75/4+20/49