Add 45/21 and 4/56
1st number: 2 3/21, 2nd number: 4/56
45/21 + 4/56 is 31/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 56 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 21 × 8 = 168,
45/21 = 45 × 8/21 × 8 = 360/168 - Likewise, for the 2nd fraction, since 56 × 3 = 168,
4/56 = 4 × 3/56 × 3 = 12/168 - Add the two like fractions:
360/168 + 12/168 = 360 + 12/168 = 372/168 - 372/168 simplified gives 31/14
- So, 45/21 + 4/56 = 31/14
In mixed form: 23/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/21+4/56 45/21+8/56 45/42+4/56 45/21+12/56 45/63+4/56 45/21+20/56 45/21+28/56