Add 90/40 and 81/48
1st number: 2 10/40, 2nd number: 1 33/48
90/40 + 81/48 is 63/16.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 48 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 40 × 6 = 240,
90/40 = 90 × 6/40 × 6 = 540/240 - Likewise, for the 2nd fraction, since 48 × 5 = 240,
81/48 = 81 × 5/48 × 5 = 405/240 - Add the two like fractions:
540/240 + 405/240 = 540 + 405/240 = 945/240 - 945/240 simplified gives 63/16
- So, 90/40 + 81/48 = 63/16
In mixed form: 315/16
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/80+81/48 90/40+81/96