Add 75/20 and 10/28
1st number: 3 15/20, 2nd number: 10/28
75/20 + 10/28 is 115/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 28 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 20 × 7 = 140,
75/20 = 75 × 7/20 × 7 = 525/140 - Likewise, for the 2nd fraction, since 28 × 5 = 140,
10/28 = 10 × 5/28 × 5 = 50/140 - Add the two like fractions:
525/140 + 50/140 = 525 + 50/140 = 575/140 - 575/140 simplified gives 115/28
- So, 75/20 + 10/28 = 115/28
In mixed form: 43/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/20+20/28 75/40+10/28 75/20+10/56 75/20+30/28 75/60+10/28 75/20+10/84 75/20+50/28 75/20+70/28