Add 30/72 and 5/70
30/72 + 5/70 is 41/84.
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,
30/72 = 30 × 35/72 × 35 = 1050/2520 - Likewise, for the 2nd fraction, since 70 × 36 = 2520,
5/70 = 5 × 36/70 × 36 = 180/2520 - Add the two like fractions:
1050/2520 + 180/2520 = 1050 + 180/2520 = 1230/2520 - 1230/2520 simplified gives 41/84
- So, 30/72 + 5/70 = 41/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/72+5/70 30/72+10/70 90/72+5/70 30/72+15/70 30/72+25/70 30/72+35/70