Add 45/24 and 72/90
1st number: 1 21/24, 2nd number: 72/90
45/24 + 72/90 is 107/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 90 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 24 × 15 = 360,
45/24 = 45 × 15/24 × 15 = 675/360 - Likewise, for the 2nd fraction, since 90 × 4 = 360,
72/90 = 72 × 4/90 × 4 = 288/360 - Add the two like fractions:
675/360 + 288/360 = 675 + 288/360 = 963/360 - 963/360 simplified gives 107/40
- So, 45/24 + 72/90 = 107/40
In mixed form: 227/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/24+72/90 45/48+72/90 45/72+72/90