Add 3/70 and 9/72
3/70 + 9/72 is 47/280.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 72 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 70 × 36 = 2520,
3/70 = 3 × 36/70 × 36 = 108/2520 - Likewise, for the 2nd fraction, since 72 × 35 = 2520,
9/72 = 9 × 35/72 × 35 = 315/2520 - Add the two like fractions:
108/2520 + 315/2520 = 108 + 315/2520 = 423/2520 - 423/2520 simplified gives 47/280
- So, 3/70 + 9/72 = 47/280
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/70+9/72 3/70+18/72 9/70+9/72 3/70+27/72 15/70+9/72 3/70+45/72 21/70+9/72 3/70+63/72