Add 90/54 and 20/75
1st number: 1 36/54, 2nd number: 20/75
90/54 + 20/75 is 29/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 75 is 1350
Next, find the equivalent fraction of both fractional numbers with denominator 1350 - For the 1st fraction, since 54 × 25 = 1350,
90/54 = 90 × 25/54 × 25 = 2250/1350 - Likewise, for the 2nd fraction, since 75 × 18 = 1350,
20/75 = 20 × 18/75 × 18 = 360/1350 - Add the two like fractions:
2250/1350 + 360/1350 = 2250 + 360/1350 = 2610/1350 - 2610/1350 simplified gives 29/15
- So, 90/54 + 20/75 = 29/15
In mixed form: 114/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/54+40/75 90/54+60/75