Add 18/7 and 12/45
1st number: 2 4/7, 2nd number: 12/45
18/7 + 12/45 is 298/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 45 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 7 × 45 = 315,
18/7 = 18 × 45/7 × 45 = 810/315 - Likewise, for the 2nd fraction, since 45 × 7 = 315,
12/45 = 12 × 7/45 × 7 = 84/315 - Add the two like fractions:
810/315 + 84/315 = 810 + 84/315 = 894/315 - 894/315 simplified gives 298/105
- So, 18/7 + 12/45 = 298/105
In mixed form: 288/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/7+12/45 18/7+24/45 18/14+12/45 18/7+12/90 54/7+12/45 18/7+36/45 18/21+12/45 90/7+12/45 18/7+60/45 18/35+12/45 18/7+84/45 18/49+12/45