Add 4/10 and 45/84
4/10 + 45/84 is 131/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 84 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 10 × 42 = 420,
4/10 = 4 × 42/10 × 42 = 168/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
45/84 = 45 × 5/84 × 5 = 225/420 - Add the two like fractions:
168/420 + 225/420 = 168 + 225/420 = 393/420 - 393/420 simplified gives 131/140
- So, 4/10 + 45/84 = 131/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/10+45/84 4/10+90/84 4/20+45/84 12/10+45/84 4/30+45/84 20/10+45/84 4/50+45/84 28/10+45/84 4/70+45/84