Add 25/28 and 90/54
1st number: 25/28, 2nd number: 1 36/54
25/28 + 90/54 is 215/84.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 54 is 756
Next, find the equivalent fraction of both fractional numbers with denominator 756 - For the 1st fraction, since 28 × 27 = 756,
25/28 = 25 × 27/28 × 27 = 675/756 - Likewise, for the 2nd fraction, since 54 × 14 = 756,
90/54 = 90 × 14/54 × 14 = 1260/756 - Add the two like fractions:
675/756 + 1260/756 = 675 + 1260/756 = 1935/756 - 1935/756 simplified gives 215/84
- So, 25/28 + 90/54 = 215/84
In mixed form: 247/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/28+90/54 25/56+90/54 75/28+90/54 25/84+90/54