Add 90/54 and 40/90
1st number: 1 36/54, 2nd number: 40/90
90/54 + 40/90 is 19/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 90 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 54 × 5 = 270,
90/54 = 90 × 5/54 × 5 = 450/270 - Likewise, for the 2nd fraction, since 90 × 3 = 270,
40/90 = 40 × 3/90 × 3 = 120/270 - Add the two like fractions:
450/270 + 120/270 = 450 + 120/270 = 570/270 - 570/270 simplified gives 19/9
- So, 90/54 + 40/90 = 19/9
In mixed form: 21/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/54+80/90