Add 50/80 and 18/12
1st number: 50/80, 2nd number: 1 6/12
50/80 + 18/12 is 17/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 12 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 80 × 3 = 240,
50/80 = 50 × 3/80 × 3 = 150/240 - Likewise, for the 2nd fraction, since 12 × 20 = 240,
18/12 = 18 × 20/12 × 20 = 360/240 - Add the two like fractions:
150/240 + 360/240 = 150 + 360/240 = 510/240 - 510/240 simplified gives 17/8
- So, 50/80 + 18/12 = 17/8
In mixed form: 21/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/80+36/12 50/80+18/24 50/80+54/12 50/80+18/36 50/80+90/12 50/80+18/60 50/80+18/84