Add 6/28 and 75/90
6/28 + 75/90 is 22/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 90 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 28 × 45 = 1260,
6/28 = 6 × 45/28 × 45 = 270/1260 - Likewise, for the 2nd fraction, since 90 × 14 = 1260,
75/90 = 75 × 14/90 × 14 = 1050/1260 - Add the two like fractions:
270/1260 + 1050/1260 = 270 + 1050/1260 = 1320/1260 - 1320/1260 simplified gives 22/21
- So, 6/28 + 75/90 = 22/21
In mixed form: 11/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/28+75/90 6/56+75/90 18/28+75/90 6/84+75/90 30/28+75/90 42/28+75/90