Add 70/40 and 8/63
1st number: 1 30/40, 2nd number: 8/63
70/40 + 8/63 is 473/252.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 63 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 40 × 63 = 2520,
70/40 = 70 × 63/40 × 63 = 4410/2520 - Likewise, for the 2nd fraction, since 63 × 40 = 2520,
8/63 = 8 × 40/63 × 40 = 320/2520 - Add the two like fractions:
4410/2520 + 320/2520 = 4410 + 320/2520 = 4730/2520 - 4730/2520 simplified gives 473/252
- So, 70/40 + 8/63 = 473/252
In mixed form: 1221/252
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/40+16/63 70/80+8/63 70/40+24/63 70/40+40/63 70/40+56/63