Add 70/90 and 48/56
70/90 + 48/56 is 103/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 56 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 90 × 28 = 2520,
70/90 = 70 × 28/90 × 28 = 1960/2520 - Likewise, for the 2nd fraction, since 56 × 45 = 2520,
48/56 = 48 × 45/56 × 45 = 2160/2520 - Add the two like fractions:
1960/2520 + 2160/2520 = 1960 + 2160/2520 = 4120/2520 - 4120/2520 simplified gives 103/63
- So, 70/90 + 48/56 = 103/63
In mixed form: 140/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/90+96/56