Add 1/70 and 12/72
1/70 + 12/72 is 19/105.
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,
12/72 = 12 × 35/72 × 35 = 420/2520 - Add the two like fractions:
36/2520 + 420/2520 = 36 + 420/2520 = 456/2520 - 456/2520 simplified gives 19/105
- So, 1/70 + 12/72 = 19/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/70+12/72 1/70+24/72 3/70+12/72 1/70+36/72 5/70+12/72 1/70+60/72 7/70+12/72 1/70+84/72