Add 81/15 and 50/80
1st number: 5 6/15, 2nd number: 50/80
81/15 + 50/80 is 241/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 80 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 15 × 16 = 240,
81/15 = 81 × 16/15 × 16 = 1296/240 - Likewise, for the 2nd fraction, since 80 × 3 = 240,
50/80 = 50 × 3/80 × 3 = 150/240 - Add the two like fractions:
1296/240 + 150/240 = 1296 + 150/240 = 1446/240 - 1446/240 simplified gives 241/40
- So, 81/15 + 50/80 = 241/40
In mixed form: 61/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/30+50/80 81/45+50/80 81/75+50/80