Add 45/20 and 90/4
1st number: 2 5/20, 2nd number: 22 2/4
45/20 + 90/4 is 99/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 4 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 4 × 5 = 20,
90/4 = 90 × 5/4 × 5 = 450/20 - Add the two like fractions:
45/20 + 450/20 = 45 + 450/20 = 495/20 - 495/20 simplified gives 99/4
- So, 45/20 + 90/4 = 99/4
In mixed form: 243/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/20+90/4 45/40+90/4 45/20+90/8 45/60+90/4 45/20+90/12 45/20+90/20 45/20+90/28