Add 45/9 and 25/40
1st number: 5 0/9, 2nd number: 25/40
45/9 + 25/40 is 45/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 40 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 9 × 40 = 360,
45/9 = 45 × 40/9 × 40 = 1800/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
25/40 = 25 × 9/40 × 9 = 225/360 - Add the two like fractions:
1800/360 + 225/360 = 1800 + 225/360 = 2025/360 - 2025/360 simplified gives 45/8
- So, 45/9 + 25/40 = 45/8
In mixed form: 55/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/9+25/40 45/9+50/40 45/18+25/40 45/9+25/80 45/9+75/40 45/27+25/40 45/63+25/40