Add 20/12 and 4/80
1st number: 1 8/12, 2nd number: 4/80
20/12 + 4/80 is 103/60.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 80 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 12 × 20 = 240,
20/12 = 20 × 20/12 × 20 = 400/240 - Likewise, for the 2nd fraction, since 80 × 3 = 240,
4/80 = 4 × 3/80 × 3 = 12/240 - Add the two like fractions:
400/240 + 12/240 = 400 + 12/240 = 412/240 - 412/240 simplified gives 103/60
- So, 20/12 + 4/80 = 103/60
In mixed form: 143/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/12+4/80 20/12+8/80 20/24+4/80 60/12+4/80 20/12+12/80 20/36+4/80 20/12+20/80 20/60+4/80 20/12+28/80 20/84+4/80