Add 54/14 and 12/40
1st number: 3 12/14, 2nd number: 12/40
54/14 + 12/40 is 291/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 40 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 14 × 20 = 280,
54/14 = 54 × 20/14 × 20 = 1080/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
12/40 = 12 × 7/40 × 7 = 84/280 - Add the two like fractions:
1080/280 + 84/280 = 1080 + 84/280 = 1164/280 - 1164/280 simplified gives 291/70
- So, 54/14 + 12/40 = 291/70
In mixed form: 411/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/14+24/40 54/28+12/40 54/14+12/80 54/14+36/40 54/42+12/40 54/14+60/40 54/70+12/40 54/14+84/40 54/98+12/40