Add 45/48 and 80/20
1st number: 45/48, 2nd number: 4 0/20
45/48 + 80/20 is 79/16.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 20 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 48 × 5 = 240,
45/48 = 45 × 5/48 × 5 = 225/240 - Likewise, for the 2nd fraction, since 20 × 12 = 240,
80/20 = 80 × 12/20 × 12 = 960/240 - Add the two like fractions:
225/240 + 960/240 = 225 + 960/240 = 1185/240 - 1185/240 simplified gives 79/16
- So, 45/48 + 80/20 = 79/16
In mixed form: 415/16
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/48+80/20 45/96+80/20 45/48+80/40 45/48+80/60