Add 90/70 and 3/48
1st number: 1 20/70, 2nd number: 3/48
90/70 + 3/48 is 151/112.
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,
90/70 = 90 × 24/70 × 24 = 2160/1680 - Likewise, for the 2nd fraction, since 48 × 35 = 1680,
3/48 = 3 × 35/48 × 35 = 105/1680 - Add the two like fractions:
2160/1680 + 105/1680 = 2160 + 105/1680 = 2265/1680 - 2265/1680 simplified gives 151/112
- So, 90/70 + 3/48 = 151/112
In mixed form: 139/112
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/70+6/48 90/70+3/96 90/70+9/48 90/70+15/48 90/70+21/48