Add 75/28 and 90/84
1st number: 2 19/28, 2nd number: 1 6/84
75/28 + 90/84 is 15/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 84 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 28 × 3 = 84,
75/28 = 75 × 3/28 × 3 = 225/84 - Likewise, for the 2nd fraction, since 84 × 1 = 84,
90/84 = 90 × 1/84 × 1 = 90/84 - Add the two like fractions:
225/84 + 90/84 = 225 + 90/84 = 315/84 - 315/84 simplified gives 15/4
- So, 75/28 + 90/84 = 15/4
In mixed form: 33/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/56+90/84 75/84+90/84