Add 90/18 and 6/40
1st number: 5 0/18, 2nd number: 6/40
90/18 + 6/40 is 103/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 40 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 18 × 20 = 360,
90/18 = 90 × 20/18 × 20 = 1800/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
6/40 = 6 × 9/40 × 9 = 54/360 - Add the two like fractions:
1800/360 + 54/360 = 1800 + 54/360 = 1854/360 - 1854/360 simplified gives 103/20
- So, 90/18 + 6/40 = 103/20
In mixed form: 53/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/18+12/40 90/36+6/40 90/18+6/80 90/18+18/40 90/54+6/40 90/18+30/40 90/18+42/40