Add 40/21 and 48/8
1st number: 1 19/21, 2nd number: 6 0/8
40/21 + 48/8 is 166/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 8 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 21 × 8 = 168,
40/21 = 40 × 8/21 × 8 = 320/168 - Likewise, for the 2nd fraction, since 8 × 21 = 168,
48/8 = 48 × 21/8 × 21 = 1008/168 - Add the two like fractions:
320/168 + 1008/168 = 320 + 1008/168 = 1328/168 - 1328/168 simplified gives 166/21
- So, 40/21 + 48/8 = 166/21
In mixed form: 719/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/21+48/8 40/21+96/8 40/42+48/8 40/21+48/16 40/63+48/8 40/21+48/24 40/21+48/40 40/21+48/56