Add 16/20 and 70/63
1st number: 16/20, 2nd number: 1 7/63
16/20 + 70/63 is 86/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 63 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 20 × 63 = 1260,
16/20 = 16 × 63/20 × 63 = 1008/1260 - Likewise, for the 2nd fraction, since 63 × 20 = 1260,
70/63 = 70 × 20/63 × 20 = 1400/1260 - Add the two like fractions:
1008/1260 + 1400/1260 = 1008 + 1400/1260 = 2408/1260 - 2408/1260 simplified gives 86/45
- So, 16/20 + 70/63 = 86/45
In mixed form: 141/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/20+70/63 16/40+70/63 48/20+70/63 16/60+70/63 80/20+70/63