Add 30/70 and 18/48
30/70 + 18/48 is 45/56.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 48 is 1680
Next, find the equivalent fraction of both fractional numbers with denominator 1680 - For the 1st fraction, since 70 × 24 = 1680,
30/70 = 30 × 24/70 × 24 = 720/1680 - Likewise, for the 2nd fraction, since 48 × 35 = 1680,
18/48 = 18 × 35/48 × 35 = 630/1680 - Add the two like fractions:
720/1680 + 630/1680 = 720 + 630/1680 = 1350/1680 - 1350/1680 simplified gives 45/56
- So, 30/70 + 18/48 = 45/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/70+18/48 30/70+36/48 30/70+18/96 90/70+18/48 30/70+54/48 30/70+90/48