Add 45/48 and 20/5
1st number: 45/48, 2nd number: 4 0/5
45/48 + 20/5 is 79/16.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 5 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 5 × 48 = 240,
20/5 = 20 × 48/5 × 48 = 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 + 20/5 = 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+20/5 45/48+40/5 45/96+20/5 45/48+20/10 45/48+60/5 45/48+20/15 45/48+20/25 45/48+20/35