Add 48/8 and 20/21
1st number: 6 0/8, 2nd number: 20/21
48/8 + 20/21 is 146/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 21 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 8 × 21 = 168,
48/8 = 48 × 21/8 × 21 = 1008/168 - Likewise, for the 2nd fraction, since 21 × 8 = 168,
20/21 = 20 × 8/21 × 8 = 160/168 - Add the two like fractions:
1008/168 + 160/168 = 1008 + 160/168 = 1168/168 - 1168/168 simplified gives 146/21
- So, 48/8 + 20/21 = 146/21
In mixed form: 620/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 96/8+20/21 48/8+40/21 48/16+20/21 48/8+20/42 48/8+60/21 48/24+20/21 48/8+20/63 48/40+20/21 48/56+20/21