Add 28/7 and 3/45
1st number: 4 0/7, 2nd number: 3/45
28/7 + 3/45 is 61/15.
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,
28/7 = 28 × 45/7 × 45 = 1260/315 - Likewise, for the 2nd fraction, since 45 × 7 = 315,
3/45 = 3 × 7/45 × 7 = 21/315 - Add the two like fractions:
1260/315 + 21/315 = 1260 + 21/315 = 1281/315 - 1281/315 simplified gives 61/15
- So, 28/7 + 3/45 = 61/15
In mixed form: 41/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/7+3/45 28/7+6/45 28/14+3/45 28/7+3/90 84/7+3/45 28/7+9/45 28/21+3/45 28/7+15/45 28/35+3/45 28/7+21/45 28/49+3/45