Add 40/21 and 72/6
1st number: 1 19/21, 2nd number: 12 0/6
40/21 + 72/6 is 292/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 6 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 21 × 2 = 42,
40/21 = 40 × 2/21 × 2 = 80/42 - Likewise, for the 2nd fraction, since 6 × 7 = 42,
72/6 = 72 × 7/6 × 7 = 504/42 - Add the two like fractions:
80/42 + 504/42 = 80 + 504/42 = 584/42 - 584/42 simplified gives 292/21
- So, 40/21 + 72/6 = 292/21
In mixed form: 1319/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/21+72/6 40/42+72/6 40/21+72/12 40/63+72/6 40/21+72/18 40/21+72/30 40/21+72/42