Add 81/2 and 25/72
1st number: 40 1/2, 2nd number: 25/72
81/2 + 25/72 is 2941/72.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 72 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 2 × 36 = 72,
81/2 = 81 × 36/2 × 36 = 2916/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
25/72 = 25 × 1/72 × 1 = 25/72 - Add the two like fractions:
2916/72 + 25/72 = 2916 + 25/72 = 2941/72 - So, 81/2 + 25/72 = 2941/72
In mixed form: 4061/72
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/2+50/72 81/4+25/72 81/2+75/72 81/6+25/72 81/10+25/72 81/14+25/72