Add 90/15 and 81/48
1st number: 6 0/15, 2nd number: 1 33/48
90/15 + 81/48 is 123/16.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 48 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 15 × 16 = 240,
90/15 = 90 × 16/15 × 16 = 1440/240 - Likewise, for the 2nd fraction, since 48 × 5 = 240,
81/48 = 81 × 5/48 × 5 = 405/240 - Add the two like fractions:
1440/240 + 405/240 = 1440 + 405/240 = 1845/240 - 1845/240 simplified gives 123/16
- So, 90/15 + 81/48 = 123/16
In mixed form: 711/16
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/30+81/48 90/15+81/96 90/45+81/48 90/75+81/48