Add 21/35 and 75/56
1st number: 21/35, 2nd number: 1 19/56
21/35 + 75/56 is 543/280.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 56 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 35 × 8 = 280,
21/35 = 21 × 8/35 × 8 = 168/280 - Likewise, for the 2nd fraction, since 56 × 5 = 280,
75/56 = 75 × 5/56 × 5 = 375/280 - Add the two like fractions:
168/280 + 375/280 = 168 + 375/280 = 543/280 - So, 21/35 + 75/56 = 543/280
In mixed form: 1263/280
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/35+75/56 21/70+75/56 63/35+75/56