Add 70/56 and 90/60
1st number: 1 14/56, 2nd number: 1 30/60
70/56 + 90/60 is 11/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 60 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 56 × 15 = 840,
70/56 = 70 × 15/56 × 15 = 1050/840 - Likewise, for the 2nd fraction, since 60 × 14 = 840,
90/60 = 90 × 14/60 × 14 = 1260/840 - Add the two like fractions:
1050/840 + 1260/840 = 1050 + 1260/840 = 2310/840 - 2310/840 simplified gives 11/4
- So, 70/56 + 90/60 = 11/4
In mixed form: 23/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: