Add 90/45 and 24/40
1st number: 2 0/45, 2nd number: 24/40
90/45 + 24/40 is 13/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 40 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 45 × 8 = 360,
90/45 = 90 × 8/45 × 8 = 720/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
24/40 = 24 × 9/40 × 9 = 216/360 - Add the two like fractions:
720/360 + 216/360 = 720 + 216/360 = 936/360 - 936/360 simplified gives 13/5
- So, 90/45 + 24/40 = 13/5
In mixed form: 23/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/45+48/40 90/45+24/80 90/45+72/40