Add 81/4 and 75/60
1st number: 20 1/4, 2nd number: 1 15/60
81/4 + 75/60 is 43/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 60 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 4 × 15 = 60,
81/4 = 81 × 15/4 × 15 = 1215/60 - Likewise, for the 2nd fraction, since 60 × 1 = 60,
75/60 = 75 × 1/60 × 1 = 75/60 - Add the two like fractions:
1215/60 + 75/60 = 1215 + 75/60 = 1290/60 - 1290/60 simplified gives 43/2
- So, 81/4 + 75/60 = 43/2
In mixed form: 211/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/8+75/60 81/12+75/60 81/20+75/60 81/28+75/60