Add 20/50 and 7/8
20/50 + 7/8 is 51/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 8 is 200
Next, find the equivalent fraction of both fractional numbers with denominator 200 - For the 1st fraction, since 50 × 4 = 200,
20/50 = 20 × 4/50 × 4 = 80/200 - Likewise, for the 2nd fraction, since 8 × 25 = 200,
7/8 = 7 × 25/8 × 25 = 175/200 - Add the two like fractions:
80/200 + 175/200 = 80 + 175/200 = 255/200 - 255/200 simplified gives 51/40
- So, 20/50 + 7/8 = 51/40
In mixed form: 111/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/50+7/8 20/50+14/8 20/50+7/16 60/50+7/8 20/50+21/8 20/50+7/24 20/50+35/8 20/50+7/40 20/50+49/8 20/50+7/56