Add 72/40 and 18/24
1st number: 1 32/40, 2nd number: 18/24
72/40 + 18/24 is 51/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 24 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 40 × 3 = 120,
72/40 = 72 × 3/40 × 3 = 216/120 - Likewise, for the 2nd fraction, since 24 × 5 = 120,
18/24 = 18 × 5/24 × 5 = 90/120 - Add the two like fractions:
216/120 + 90/120 = 216 + 90/120 = 306/120 - 306/120 simplified gives 51/20
- So, 72/40 + 18/24 = 51/20
In mixed form: 211/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/40+36/24 72/80+18/24 72/40+18/48 72/40+54/24 72/40+18/72 72/40+90/24