Add 21/60 and 40/10
1st number: 21/60, 2nd number: 4 0/10
21/60 + 40/10 is 87/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 10 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 60 × 1 = 60,
21/60 = 21 × 1/60 × 1 = 21/60 - Likewise, for the 2nd fraction, since 10 × 6 = 60,
40/10 = 40 × 6/10 × 6 = 240/60 - Add the two like fractions:
21/60 + 240/60 = 21 + 240/60 = 261/60 - 261/60 simplified gives 87/20
- So, 21/60 + 40/10 = 87/20
In mixed form: 47/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/60+40/10 21/60+80/10 21/60+40/20 63/60+40/10 21/60+40/30 21/60+40/50 21/60+40/70