Answers

Add 63/14 and 45/80

1^st number: 4 7/14, 2^nd number: 45/80

63/14 + 45/80 is 81/16.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 14 and 80 is 560
   
   Next, find the equivalent fraction of both fractional numbers with denominator 560
2. For the 1st fraction, since 14 × 40 = 560,
   63/14 = 63 × 40/14 × 40 = 2520/560
3. Likewise, for the 2nd fraction, since 80 × 7 = 560,
   45/80 = 45 × 7/80 × 7 = 315/560
4. Add the two like fractions:
   2520/560 + 315/560 = 2520 + 315/560 = 2835/560
5. 2835/560 simplified gives 81/16
6. So, 63/14 + 45/80 = 81/16
   In mixed form: 51/16

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad

Related: ⁶³/₁₄+⁹⁰/₈₀ ⁶³/₂₈+⁴⁵/₈₀ ⁶³/₄₂+⁴⁵/₈₀ ⁶³/₇₀+⁴⁵/₈₀ ⁶³/₉₈+⁴⁵/₈₀

Add Fractions Calculator