Add 75/2 and 90/21
1st number: 37 1/2, 2nd number: 4 6/21
75/2 + 90/21 is 585/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 21 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 2 × 21 = 42,
75/2 = 75 × 21/2 × 21 = 1575/42 - Likewise, for the 2nd fraction, since 21 × 2 = 42,
90/21 = 90 × 2/21 × 2 = 180/42 - Add the two like fractions:
1575/42 + 180/42 = 1575 + 180/42 = 1755/42 - 1755/42 simplified gives 585/14
- So, 75/2 + 90/21 = 585/14
In mixed form: 4111/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/4+90/21 75/2+90/42 75/6+90/21 75/2+90/63 75/10+90/21 75/14+90/21