Add 72/48 and 18/40
1st number: 1 24/48, 2nd number: 18/40
72/48 + 18/40 is 39/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 40 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 48 × 5 = 240,
72/48 = 72 × 5/48 × 5 = 360/240 - Likewise, for the 2nd fraction, since 40 × 6 = 240,
18/40 = 18 × 6/40 × 6 = 108/240 - Add the two like fractions:
360/240 + 108/240 = 360 + 108/240 = 468/240 - 468/240 simplified gives 39/20
- So, 72/48 + 18/40 = 39/20
In mixed form: 119/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/48+36/40 72/96+18/40 72/48+18/80 72/48+54/40 72/48+90/40