Add 90/2 and 70/40
1st number: 45 0/2, 2nd number: 1 30/40
90/2 + 70/40 is 187/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 40 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 2 × 20 = 40,
90/2 = 90 × 20/2 × 20 = 1800/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
70/40 = 70 × 1/40 × 1 = 70/40 - Add the two like fractions:
1800/40 + 70/40 = 1800 + 70/40 = 1870/40 - 1870/40 simplified gives 187/4
- So, 90/2 + 70/40 = 187/4
In mixed form: 463/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/4+70/40 90/2+70/80 90/6+70/40 90/10+70/40 90/14+70/40