Add 45/48 and 70/45
1st number: 45/48, 2nd number: 1 25/45
45/48 + 70/45 is 359/144.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 45 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 48 × 15 = 720,
45/48 = 45 × 15/48 × 15 = 675/720 - Likewise, for the 2nd fraction, since 45 × 16 = 720,
70/45 = 70 × 16/45 × 16 = 1120/720 - Add the two like fractions:
675/720 + 1120/720 = 675 + 1120/720 = 1795/720 - 1795/720 simplified gives 359/144
- So, 45/48 + 70/45 = 359/144
In mixed form: 271/144
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/48+70/45 45/96+70/45 45/48+70/90