Add 45/7 and 4/81
1st number: 6 3/7, 2nd number: 4/81
45/7 + 4/81 is 3673/567.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 81 is 567
Next, find the equivalent fraction of both fractional numbers with denominator 567 - For the 1st fraction, since 7 × 81 = 567,
45/7 = 45 × 81/7 × 81 = 3645/567 - Likewise, for the 2nd fraction, since 81 × 7 = 567,
4/81 = 4 × 7/81 × 7 = 28/567 - Add the two like fractions:
3645/567 + 28/567 = 3645 + 28/567 = 3673/567 - So, 45/7 + 4/81 = 3673/567
In mixed form: 6271/567
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/7+4/81 45/7+8/81 45/14+4/81 45/7+12/81 45/21+4/81 45/7+20/81 45/35+4/81 45/7+28/81 45/49+4/81