Add 54/84 and 3/10
54/84 + 3/10 is 33/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 10 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 84 × 5 = 420,
54/84 = 54 × 5/84 × 5 = 270/420 - Likewise, for the 2nd fraction, since 10 × 42 = 420,
3/10 = 3 × 42/10 × 42 = 126/420 - Add the two like fractions:
270/420 + 126/420 = 270 + 126/420 = 396/420 - 396/420 simplified gives 33/35
- So, 54/84 + 3/10 = 33/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/84+6/10 54/84+3/20 54/84+9/10 54/84+3/30 54/84+15/10 54/84+3/50 54/84+21/10 54/84+3/70