Add 75/56 and 10/21
1st number: 1 19/56, 2nd number: 10/21
75/56 + 10/21 is 305/168.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 21 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 56 × 3 = 168,
75/56 = 75 × 3/56 × 3 = 225/168 - Likewise, for the 2nd fraction, since 21 × 8 = 168,
10/21 = 10 × 8/21 × 8 = 80/168 - Add the two like fractions:
225/168 + 80/168 = 225 + 80/168 = 305/168 - So, 75/56 + 10/21 = 305/168
In mixed form: 1137/168
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/56+20/21 75/56+10/42 75/56+30/21 75/56+10/63 75/56+50/21 75/56+70/21