Add 50/90 and 81/40
1st number: 50/90, 2nd number: 2 1/40
50/90 + 81/40 is 929/360.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 40 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 90 × 4 = 360,
50/90 = 50 × 4/90 × 4 = 200/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
81/40 = 81 × 9/40 × 9 = 729/360 - Add the two like fractions:
200/360 + 729/360 = 200 + 729/360 = 929/360 - So, 50/90 + 81/40 = 929/360
In mixed form: 2209/360
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/90+81/80