Add 7/45 and 12/54
7/45 + 12/54 is 17/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 54 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 45 × 6 = 270,
7/45 = 7 × 6/45 × 6 = 42/270 - Likewise, for the 2nd fraction, since 54 × 5 = 270,
12/54 = 12 × 5/54 × 5 = 60/270 - Add the two like fractions:
42/270 + 60/270 = 42 + 60/270 = 102/270 - 102/270 simplified gives 17/45
- So, 7/45 + 12/54 = 17/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/45+12/54 7/45+24/54 7/90+12/54 21/45+12/54 7/45+36/54 35/45+12/54 7/45+60/54 49/45+12/54 7/45+84/54