Add 21/48 and 20/10
1st number: 21/48, 2nd number: 2 0/10
21/48 + 20/10 is 39/16.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 10 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 48 × 5 = 240,
21/48 = 21 × 5/48 × 5 = 105/240 - Likewise, for the 2nd fraction, since 10 × 24 = 240,
20/10 = 20 × 24/10 × 24 = 480/240 - Add the two like fractions:
105/240 + 480/240 = 105 + 480/240 = 585/240 - 585/240 simplified gives 39/16
- So, 21/48 + 20/10 = 39/16
In mixed form: 27/16
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/48+20/10 21/48+40/10 21/96+20/10 63/48+20/10 21/48+60/10 21/48+20/30 21/48+20/50 21/48+20/70