Add 40/70 and 8/4
1st number: 40/70, 2nd number: 2 0/4
40/70 + 8/4 is 18/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 4 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 70 × 2 = 140,
40/70 = 40 × 2/70 × 2 = 80/140 - Likewise, for the 2nd fraction, since 4 × 35 = 140,
8/4 = 8 × 35/4 × 35 = 280/140 - Add the two like fractions:
80/140 + 280/140 = 80 + 280/140 = 360/140 - 360/140 simplified gives 18/7
- So, 40/70 + 8/4 = 18/7
In mixed form: 24/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/70+8/4 40/70+16/4 40/70+24/4 40/70+8/12 40/70+40/4 40/70+8/20 40/70+56/4 40/70+8/28