Add 70/15 and 18/40
1st number: 4 10/15, 2nd number: 18/40
70/15 + 18/40 is 307/60.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 15 × 8 = 120,
70/15 = 70 × 8/15 × 8 = 560/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
18/40 = 18 × 3/40 × 3 = 54/120 - Add the two like fractions:
560/120 + 54/120 = 560 + 54/120 = 614/120 - 614/120 simplified gives 307/60
- So, 70/15 + 18/40 = 307/60
In mixed form: 57/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/15+36/40 70/30+18/40 70/15+18/80 70/15+54/40 70/45+18/40 70/15+90/40 70/75+18/40