Answers

Add 63/35 and 12/80

1^st number: 1 28/35, 2^nd number: 12/80

63/35 + 12/80 is 39/20.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 35 and 80 is 560
   
   Next, find the equivalent fraction of both fractional numbers with denominator 560
2. For the 1st fraction, since 35 × 16 = 560,
   63/35 = 63 × 16/35 × 16 = 1008/560
3. Likewise, for the 2nd fraction, since 80 × 7 = 560,
   12/80 = 12 × 7/80 × 7 = 84/560
4. Add the two like fractions:
   1008/560 + 84/560 = 1008 + 84/560 = 1092/560
5. 1092/560 simplified gives 39/20
6. So, 63/35 + 12/80 = 39/20
   In mixed form: 119/20

MathStep (Works offline)

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

Related: ⁶³/₃₅+²⁴/₈₀ ⁶³/₇₀+¹²/₈₀ ⁶³/₃₅+³⁶/₈₀ ⁶³/₃₅+⁶⁰/₈₀ ⁶³/₃₅+⁸⁴/₈₀

Add Fractions Calculator