Add 40/50 and 12/80
40/50 + 12/80 is 19/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 80 is 400
Next, find the equivalent fraction of both fractional numbers with denominator 400 - For the 1st fraction, since 50 × 8 = 400,
40/50 = 40 × 8/50 × 8 = 320/400 - Likewise, for the 2nd fraction, since 80 × 5 = 400,
12/80 = 12 × 5/80 × 5 = 60/400 - Add the two like fractions:
320/400 + 60/400 = 320 + 60/400 = 380/400 - 380/400 simplified gives 19/20
- So, 40/50 + 12/80 = 19/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/50+12/80 40/50+24/80 40/50+36/80 40/50+60/80 40/50+84/80