Add 90/4 and 12/70
1st number: 22 2/4, 2nd number: 12/70
90/4 + 12/70 is 1587/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 70 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 4 × 35 = 140,
90/4 = 90 × 35/4 × 35 = 3150/140 - Likewise, for the 2nd fraction, since 70 × 2 = 140,
12/70 = 12 × 2/70 × 2 = 24/140 - Add the two like fractions:
3150/140 + 24/140 = 3150 + 24/140 = 3174/140 - 3174/140 simplified gives 1587/70
- So, 90/4 + 12/70 = 1587/70
In mixed form: 2247/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/4+24/70 90/8+12/70 90/4+36/70 90/12+12/70 90/4+60/70 90/20+12/70 90/4+84/70 90/28+12/70