Add 45/12 and 8/70
1st number: 3 9/12, 2nd number: 8/70
45/12 + 8/70 is 541/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 70 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 12 × 35 = 420,
45/12 = 45 × 35/12 × 35 = 1575/420 - Likewise, for the 2nd fraction, since 70 × 6 = 420,
8/70 = 8 × 6/70 × 6 = 48/420 - Add the two like fractions:
1575/420 + 48/420 = 1575 + 48/420 = 1623/420 - 1623/420 simplified gives 541/140
- So, 45/12 + 8/70 = 541/140
In mixed form: 3121/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/12+8/70 45/12+16/70 45/24+8/70 45/12+24/70 45/36+8/70 45/12+40/70 45/60+8/70 45/12+56/70 45/84+8/70