Add 45/32 and 20/70
1st number: 1 13/32, 2nd number: 20/70
45/32 + 20/70 is 379/224.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 32 and 70 is 1120
Next, find the equivalent fraction of both fractional numbers with denominator 1120 - For the 1st fraction, since 32 × 35 = 1120,
45/32 = 45 × 35/32 × 35 = 1575/1120 - Likewise, for the 2nd fraction, since 70 × 16 = 1120,
20/70 = 20 × 16/70 × 16 = 320/1120 - Add the two like fractions:
1575/1120 + 320/1120 = 1575 + 320/1120 = 1895/1120 - 1895/1120 simplified gives 379/224
- So, 45/32 + 20/70 = 379/224
In mixed form: 1155/224
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/32+20/70 45/32+40/70 45/64+20/70 45/32+60/70 45/96+20/70