Add 3/20 and 45/50
3/20 + 45/50 is 21/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 50 is 100
Next, find the equivalent fraction of both fractional numbers with denominator 100 - For the 1st fraction, since 20 × 5 = 100,
3/20 = 3 × 5/20 × 5 = 15/100 - Likewise, for the 2nd fraction, since 50 × 2 = 100,
45/50 = 45 × 2/50 × 2 = 90/100 - Add the two like fractions:
15/100 + 90/100 = 15 + 90/100 = 105/100 - 105/100 simplified gives 21/20
- So, 3/20 + 45/50 = 21/20
In mixed form: 11/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/20+45/50 3/20+90/50 3/40+45/50 9/20+45/50 3/60+45/50 15/20+45/50 21/20+45/50