Add 40/70 and 3/8
40/70 + 3/8 is 53/56.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 8 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 70 × 4 = 280,
40/70 = 40 × 4/70 × 4 = 160/280 - Likewise, for the 2nd fraction, since 8 × 35 = 280,
3/8 = 3 × 35/8 × 35 = 105/280 - Add the two like fractions:
160/280 + 105/280 = 160 + 105/280 = 265/280 - 265/280 simplified gives 53/56
- So, 40/70 + 3/8 = 53/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/70+3/8 40/70+6/8 40/70+3/16 40/70+9/8 40/70+3/24 40/70+15/8 40/70+3/40 40/70+21/8 40/70+3/56