Add 54/14 and 45/30
1st number: 3 12/14, 2nd number: 1 15/30
54/14 + 45/30 is 75/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 30 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 14 × 15 = 210,
54/14 = 54 × 15/14 × 15 = 810/210 - Likewise, for the 2nd fraction, since 30 × 7 = 210,
45/30 = 45 × 7/30 × 7 = 315/210 - Add the two like fractions:
810/210 + 315/210 = 810 + 315/210 = 1125/210 - 1125/210 simplified gives 75/14
- So, 54/14 + 45/30 = 75/14
In mixed form: 55/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/14+90/30 54/28+45/30 54/14+45/60 54/42+45/30 54/14+45/90 54/70+45/30 54/98+45/30