Add 1/40 and 28/63
1/40 + 28/63 is 169/360.
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,
1/40 = 1 × 63/40 × 63 = 63/2520 - Likewise, for the 2nd fraction, since 63 × 40 = 2520,
28/63 = 28 × 40/63 × 40 = 1120/2520 - Add the two like fractions:
63/2520 + 1120/2520 = 63 + 1120/2520 = 1183/2520 - 1183/2520 simplified gives 169/360
- So, 1/40 + 28/63 = 169/360
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/40+28/63 1/40+56/63 1/80+28/63 3/40+28/63 1/40+84/63 5/40+28/63 7/40+28/63