Add 45/20 and 40/5
1st number: 2 5/20, 2nd number: 8 0/5
45/20 + 40/5 is 41/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 5 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 20 × 1 = 20,
45/20 = 45 × 1/20 × 1 = 45/20 - Likewise, for the 2nd fraction, since 5 × 4 = 20,
40/5 = 40 × 4/5 × 4 = 160/20 - Add the two like fractions:
45/20 + 160/20 = 45 + 160/20 = 205/20 - 205/20 simplified gives 41/4
- So, 45/20 + 40/5 = 41/4
In mixed form: 101/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/20+40/5 45/20+80/5 45/40+40/5 45/20+40/10 45/60+40/5 45/20+40/15 45/20+40/25 45/20+40/35