Add 54/56 and 16/20
54/56 + 16/20 is 247/140.
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,
16/20 = 16 × 14/20 × 14 = 224/280 - Add the two like fractions:
270/280 + 224/280 = 270 + 224/280 = 494/280 - 494/280 simplified gives 247/140
- So, 54/56 + 16/20 = 247/140
In mixed form: 1107/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/56+32/20 54/56+16/40 54/56+48/20 54/56+16/60 54/56+80/20