Add 56/40 and 30/84
1st number: 1 16/40, 2nd number: 30/84
56/40 + 30/84 is 123/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 84 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 40 × 21 = 840,
56/40 = 56 × 21/40 × 21 = 1176/840 - Likewise, for the 2nd fraction, since 84 × 10 = 840,
30/84 = 30 × 10/84 × 10 = 300/840 - Add the two like fractions:
1176/840 + 300/840 = 1176 + 300/840 = 1476/840 - 1476/840 simplified gives 123/70
- So, 56/40 + 30/84 = 123/70
In mixed form: 153/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/40+60/84 56/80+30/84 56/40+90/84