Add 81/20 and 56/5
1st number: 4 1/20, 2nd number: 11 1/5
81/20 + 56/5 is 61/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 5 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 20 × 1 = 20,
81/20 = 81 × 1/20 × 1 = 81/20 - Likewise, for the 2nd fraction, since 5 × 4 = 20,
56/5 = 56 × 4/5 × 4 = 224/20 - Add the two like fractions:
81/20 + 224/20 = 81 + 224/20 = 305/20 - 305/20 simplified gives 61/4
- So, 81/20 + 56/5 = 61/4
In mixed form: 151/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/40+56/5 81/20+56/10 81/60+56/5 81/20+56/15 81/20+56/25 81/20+56/35