Add 7/40 and 56/63
7/40 + 56/63 is 383/360.
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,
7/40 = 7 × 63/40 × 63 = 441/2520 - Likewise, for the 2nd fraction, since 63 × 40 = 2520,
56/63 = 56 × 40/63 × 40 = 2240/2520 - Add the two like fractions:
441/2520 + 2240/2520 = 441 + 2240/2520 = 2681/2520 - 2681/2520 simplified gives 383/360
- So, 7/40 + 56/63 = 383/360
In mixed form: 123/360
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/40+56/63 7/80+56/63 21/40+56/63 35/40+56/63 49/40+56/63