Answers

Add 98/12 and 63/90

1^st number: 8 2/12, 2^nd number: 63/90

98/12 + 63/90 is 133/15.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 12 and 90 is 180
   
   Next, find the equivalent fraction of both fractional numbers with denominator 180
2. For the 1st fraction, since 12 × 15 = 180,
   98/12 = 98 × 15/12 × 15 = 1470/180
3. Likewise, for the 2nd fraction, since 90 × 2 = 180,
   63/90 = 63 × 2/90 × 2 = 126/180
4. Add the two like fractions:
   1470/180 + 126/180 = 1470 + 126/180 = 1596/180
5. 1596/180 simplified gives 133/15
6. So, 98/12 + 63/90 = 133/15
   In mixed form: 813/15

MathStep (Works offline)

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

Related: ⁹⁸/₂₄+⁶³/₉₀ ⁹⁸/₃₆+⁶³/₉₀ ⁹⁸/₆₀+⁶³/₉₀ ⁹⁸/₈₄+⁶³/₉₀

Add Fractions Calculator