Add 63/21 and 40/5
1st number: 3 0/21, 2nd number: 8 0/5
63/21 + 40/5 is 11/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 5 is 105
Next, find the equivalent fraction of both fractional numbers with denominator 105 - For the 1st fraction, since 21 × 5 = 105,
63/21 = 63 × 5/21 × 5 = 315/105 - Likewise, for the 2nd fraction, since 5 × 21 = 105,
40/5 = 40 × 21/5 × 21 = 840/105 - Add the two like fractions:
315/105 + 840/105 = 315 + 840/105 = 1155/105 - 1155/105 simplified gives 11/1
- So, 63/21 + 40/5 = 11/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/21+80/5 63/42+40/5 63/21+40/10 63/21+40/15 63/21+40/25 63/21+40/35