Add 81/80 and 48/30
1st number: 1 1/80, 2nd number: 1 18/30
81/80 + 48/30 is 209/80.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 30 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 80 × 3 = 240,
81/80 = 81 × 3/80 × 3 = 243/240 - Likewise, for the 2nd fraction, since 30 × 8 = 240,
48/30 = 48 × 8/30 × 8 = 384/240 - Add the two like fractions:
243/240 + 384/240 = 243 + 384/240 = 627/240 - 627/240 simplified gives 209/80
- So, 81/80 + 48/30 = 209/80
In mixed form: 249/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/80+96/30 81/80+48/60 81/80+48/90