Add 4/20 and 4/70
4/20 + 4/70 is 9/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 70 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 20 × 7 = 140,
4/20 = 4 × 7/20 × 7 = 28/140 - Likewise, for the 2nd fraction, since 70 × 2 = 140,
4/70 = 4 × 2/70 × 2 = 8/140 - Add the two like fractions:
28/140 + 8/140 = 28 + 8/140 = 36/140 - 36/140 simplified gives 9/35
- So, 4/20 + 4/70 = 9/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/20+4/70 4/20+8/70 4/40+4/70 12/20+4/70 4/20+12/70 4/60+4/70 4/20+20/70 28/20+4/70 4/20+28/70