Add 54/70 and 1/72
54/70 + 1/72 is 1979/2520.
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,
54/70 = 54 × 36/70 × 36 = 1944/2520 - Likewise, for the 2nd fraction, since 72 × 35 = 2520,
1/72 = 1 × 35/72 × 35 = 35/2520 - Add the two like fractions:
1944/2520 + 35/2520 = 1944 + 35/2520 = 1979/2520 - So, 54/70 + 1/72 = 1979/2520
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/70+2/72 54/70+3/72 54/70+5/72 54/70+7/72