Add 54/56 and 63/20
1st number: 54/56, 2nd number: 3 3/20
54/56 + 63/20 is 144/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 20 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 56 × 5 = 280,
54/56 = 54 × 5/56 × 5 = 270/280 - Likewise, for the 2nd fraction, since 20 × 14 = 280,
63/20 = 63 × 14/20 × 14 = 882/280 - Add the two like fractions:
270/280 + 882/280 = 270 + 882/280 = 1152/280 - 1152/280 simplified gives 144/35
- So, 54/56 + 63/20 = 144/35
In mixed form: 44/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/56+63/40 54/56+63/60