Add 12/72 and 54/70
12/72 + 54/70 is 197/210.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 70 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 72 × 35 = 2520,
12/72 = 12 × 35/72 × 35 = 420/2520 - Likewise, for the 2nd fraction, since 70 × 36 = 2520,
54/70 = 54 × 36/70 × 36 = 1944/2520 - Add the two like fractions:
420/2520 + 1944/2520 = 420 + 1944/2520 = 2364/2520 - 2364/2520 simplified gives 197/210
- So, 12/72 + 54/70 = 197/210
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/72+54/70 36/72+54/70 60/72+54/70 84/72+54/70