Add 81/50 and 30/80
1st number: 1 31/50, 2nd number: 30/80
81/50 + 30/80 is 399/200.
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,
81/50 = 81 × 8/50 × 8 = 648/400 - Likewise, for the 2nd fraction, since 80 × 5 = 400,
30/80 = 30 × 5/80 × 5 = 150/400 - Add the two like fractions:
648/400 + 150/400 = 648 + 150/400 = 798/400 - 798/400 simplified gives 399/200
- So, 81/50 + 30/80 = 399/200
In mixed form: 1199/200
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/50+60/80 81/50+90/80