Add 9/7 and 45/30
1st number: 1 2/7, 2nd number: 1 15/30
9/7 + 45/30 is 39/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 30 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 7 × 30 = 210,
9/7 = 9 × 30/7 × 30 = 270/210 - Likewise, for the 2nd fraction, since 30 × 7 = 210,
45/30 = 45 × 7/30 × 7 = 315/210 - Add the two like fractions:
270/210 + 315/210 = 270 + 315/210 = 585/210 - 585/210 simplified gives 39/14
- So, 9/7 + 45/30 = 39/14
In mixed form: 211/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/7+45/30 9/7+90/30 9/14+45/30 9/7+45/60 27/7+45/30 9/21+45/30 9/7+45/90 45/7+45/30 9/35+45/30 63/7+45/30 9/49+45/30