Add 1/70 and 70/72
1/70 + 70/72 is 1243/1260.
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,
1/70 = 1 × 36/70 × 36 = 36/2520 - Likewise, for the 2nd fraction, since 72 × 35 = 2520,
70/72 = 70 × 35/72 × 35 = 2450/2520 - Add the two like fractions:
36/2520 + 2450/2520 = 36 + 2450/2520 = 2486/2520 - 2486/2520 simplified gives 1243/1260
- So, 1/70 + 70/72 = 1243/1260
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/70+70/72 3/70+70/72 5/70+70/72 7/70+70/72