Add 75/18 and 45/40
1st number: 4 3/18, 2nd number: 1 5/40
75/18 + 45/40 is 127/24.
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,
75/18 = 75 × 20/18 × 20 = 1500/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
45/40 = 45 × 9/40 × 9 = 405/360 - Add the two like fractions:
1500/360 + 405/360 = 1500 + 405/360 = 1905/360 - 1905/360 simplified gives 127/24
- So, 75/18 + 45/40 = 127/24
In mixed form: 57/24
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/18+90/40 75/36+45/40 75/18+45/80 75/54+45/40 75/90+45/40