Add 70/4 and 9/45
1st number: 17 2/4, 2nd number: 9/45
70/4 + 9/45 is 177/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 45 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 4 × 45 = 180,
70/4 = 70 × 45/4 × 45 = 3150/180 - Likewise, for the 2nd fraction, since 45 × 4 = 180,
9/45 = 9 × 4/45 × 4 = 36/180 - Add the two like fractions:
3150/180 + 36/180 = 3150 + 36/180 = 3186/180 - 3186/180 simplified gives 177/10
- So, 70/4 + 9/45 = 177/10
In mixed form: 177/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/4+18/45 70/8+9/45 70/4+9/90 70/4+27/45 70/12+9/45 70/20+9/45 70/4+63/45 70/28+9/45