Add 72/40 and 1/63
1st number: 1 32/40, 2nd number: 1/63
72/40 + 1/63 is 572/315.
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,
72/40 = 72 × 63/40 × 63 = 4536/2520 - Likewise, for the 2nd fraction, since 63 × 40 = 2520,
1/63 = 1 × 40/63 × 40 = 40/2520 - Add the two like fractions:
4536/2520 + 40/2520 = 4536 + 40/2520 = 4576/2520 - 4576/2520 simplified gives 572/315
- So, 72/40 + 1/63 = 572/315
In mixed form: 1257/315
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/40+2/63 72/80+1/63 72/40+3/63 72/40+5/63 72/40+7/63