Add 70/56 and 4/90
1st number: 1 14/56, 2nd number: 4/90
70/56 + 4/90 is 233/180.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 90 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 56 × 45 = 2520,
70/56 = 70 × 45/56 × 45 = 3150/2520 - Likewise, for the 2nd fraction, since 90 × 28 = 2520,
4/90 = 4 × 28/90 × 28 = 112/2520 - Add the two like fractions:
3150/2520 + 112/2520 = 3150 + 112/2520 = 3262/2520 - 3262/2520 simplified gives 233/180
- So, 70/56 + 4/90 = 233/180
In mixed form: 153/180
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/56+8/90 70/56+12/90 70/56+20/90 70/56+28/90