Add 90/40 and 45/8
1st number: 2 10/40, 2nd number: 5 5/8
90/40 + 45/8 is 63/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 8 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 40 × 1 = 40,
90/40 = 90 × 1/40 × 1 = 90/40 - Likewise, for the 2nd fraction, since 8 × 5 = 40,
45/8 = 45 × 5/8 × 5 = 225/40 - Add the two like fractions:
90/40 + 225/40 = 90 + 225/40 = 315/40 - 315/40 simplified gives 63/8
- So, 90/40 + 45/8 = 63/8
In mixed form: 77/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/40+90/8 90/80+45/8 90/40+45/16 90/40+45/24 90/40+45/40 90/40+45/56