Add 70/40 and 8/15
1st number: 1 30/40, 2nd number: 8/15
70/40 + 8/15 is 137/60.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 15 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 40 × 3 = 120,
70/40 = 70 × 3/40 × 3 = 210/120 - Likewise, for the 2nd fraction, since 15 × 8 = 120,
8/15 = 8 × 8/15 × 8 = 64/120 - Add the two like fractions:
210/120 + 64/120 = 210 + 64/120 = 274/120 - 274/120 simplified gives 137/60
- So, 70/40 + 8/15 = 137/60
In mixed form: 217/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/40+16/15 70/80+8/15 70/40+8/30 70/40+24/15 70/40+8/45 70/40+40/15 70/40+8/75 70/40+56/15