Add 81/2 and 4/7
1st number: 40 1/2, 2nd number: 4/7
81/2 + 4/7 is 575/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 7 is 14
Next, find the equivalent fraction of both fractional numbers with denominator 14 - For the 1st fraction, since 2 × 7 = 14,
81/2 = 81 × 7/2 × 7 = 567/14 - Likewise, for the 2nd fraction, since 7 × 2 = 14,
4/7 = 4 × 2/7 × 2 = 8/14 - Add the two like fractions:
567/14 + 8/14 = 567 + 8/14 = 575/14 - So, 81/2 + 4/7 = 575/14
In mixed form: 411/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/2+8/7 81/4+4/7 81/2+4/14 81/2+12/7 81/6+4/7 81/2+4/21 81/2+20/7 81/10+4/7 81/2+4/35 81/2+28/7 81/14+4/7 81/2+4/49