Add 7/63 and 8/20
7/63 + 8/20 is 23/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 20 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 63 × 20 = 1260,
7/63 = 7 × 20/63 × 20 = 140/1260 - Likewise, for the 2nd fraction, since 20 × 63 = 1260,
8/20 = 8 × 63/20 × 63 = 504/1260 - Add the two like fractions:
140/1260 + 504/1260 = 140 + 504/1260 = 644/1260 - 644/1260 simplified gives 23/45
- So, 7/63 + 8/20 = 23/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/63+8/20 7/63+16/20 7/63+8/40 21/63+8/20 7/63+24/20 7/63+8/60 35/63+8/20 7/63+40/20 49/63+8/20 7/63+56/20