Add 90/70 and 3/24
1st number: 1 20/70, 2nd number: 3/24
90/70 + 3/24 is 79/56.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 24 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 70 × 12 = 840,
90/70 = 90 × 12/70 × 12 = 1080/840 - Likewise, for the 2nd fraction, since 24 × 35 = 840,
3/24 = 3 × 35/24 × 35 = 105/840 - Add the two like fractions:
1080/840 + 105/840 = 1080 + 105/840 = 1185/840 - 1185/840 simplified gives 79/56
- So, 90/70 + 3/24 = 79/56
In mixed form: 123/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/70+6/24 90/70+3/48 90/70+9/24 90/70+3/72 90/70+15/24 90/70+21/24