Add 63/81 and 75/40
1st number: 63/81, 2nd number: 1 35/40
63/81 + 75/40 is 191/72.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 40 is 3240
Next, find the equivalent fraction of both fractional numbers with denominator 3240 - For the 1st fraction, since 81 × 40 = 3240,
63/81 = 63 × 40/81 × 40 = 2520/3240 - Likewise, for the 2nd fraction, since 40 × 81 = 3240,
75/40 = 75 × 81/40 × 81 = 6075/3240 - Add the two like fractions:
2520/3240 + 6075/3240 = 2520 + 6075/3240 = 8595/3240 - 8595/3240 simplified gives 191/72
- So, 63/81 + 75/40 = 191/72
In mixed form: 247/72
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/81+75/80