Add 80/90 and 45/24
1st number: 80/90, 2nd number: 1 21/24
80/90 + 45/24 is 199/72.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 24 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 90 × 4 = 360,
80/90 = 80 × 4/90 × 4 = 320/360 - Likewise, for the 2nd fraction, since 24 × 15 = 360,
45/24 = 45 × 15/24 × 15 = 675/360 - Add the two like fractions:
320/360 + 675/360 = 320 + 675/360 = 995/360 - 995/360 simplified gives 199/72
- So, 80/90 + 45/24 = 199/72
In mixed form: 255/72
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/90+90/24 80/90+45/48 80/90+45/72