Add 75/21 and 5/60
1st number: 3 12/21, 2nd number: 5/60
75/21 + 5/60 is 307/84.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 60 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 21 × 20 = 420,
75/21 = 75 × 20/21 × 20 = 1500/420 - Likewise, for the 2nd fraction, since 60 × 7 = 420,
5/60 = 5 × 7/60 × 7 = 35/420 - Add the two like fractions:
1500/420 + 35/420 = 1500 + 35/420 = 1535/420 - 1535/420 simplified gives 307/84
- So, 75/21 + 5/60 = 307/84
In mixed form: 355/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/21+10/60 75/42+5/60 75/21+15/60 75/63+5/60 75/21+25/60 75/21+35/60