Add 70/4 and 5/45
1st number: 17 2/4, 2nd number: 5/45
70/4 + 5/45 is 317/18.
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,
5/45 = 5 × 4/45 × 4 = 20/180 - Add the two like fractions:
3150/180 + 20/180 = 3150 + 20/180 = 3170/180 - 3170/180 simplified gives 317/18
- So, 70/4 + 5/45 = 317/18
In mixed form: 1711/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/4+10/45 70/8+5/45 70/4+5/90 70/4+15/45 70/12+5/45 70/4+25/45 70/20+5/45 70/4+35/45 70/28+5/45