Add 9/70 and 56/72
9/70 + 56/72 is 571/630.
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,
9/70 = 9 × 36/70 × 36 = 324/2520 - Likewise, for the 2nd fraction, since 72 × 35 = 2520,
56/72 = 56 × 35/72 × 35 = 1960/2520 - Add the two like fractions:
324/2520 + 1960/2520 = 324 + 1960/2520 = 2284/2520 - 2284/2520 simplified gives 571/630
- So, 9/70 + 56/72 = 571/630
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/70+56/72 27/70+56/72 45/70+56/72 63/70+56/72