Add 63/2 and 90/70
1st number: 31 1/2, 2nd number: 1 20/70
63/2 + 90/70 is 459/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 70 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 2 × 35 = 70,
63/2 = 63 × 35/2 × 35 = 2205/70 - Likewise, for the 2nd fraction, since 70 × 1 = 70,
90/70 = 90 × 1/70 × 1 = 90/70 - Add the two like fractions:
2205/70 + 90/70 = 2205 + 90/70 = 2295/70 - 2295/70 simplified gives 459/14
- So, 63/2 + 90/70 = 459/14
In mixed form: 3211/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/4+90/70 63/6+90/70 63/10+90/70 63/14+90/70