Answers

Add 98/35 and 63/90

1^st number: 2 28/35, 2^nd number: 63/90

98/35 + 63/90 is 7/2.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 35 and 90 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 35 × 18 = 630,
   98/35 = 98 × 18/35 × 18 = 1764/630
3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
   63/90 = 63 × 7/90 × 7 = 441/630
4. Add the two like fractions:
   1764/630 + 441/630 = 1764 + 441/630 = 2205/630
5. 2205/630 simplified gives 7/2
6. So, 98/35 + 63/90 = 7/2
   In mixed form: 31/2

MathStep (Works offline)

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

Related: ⁹⁸/₇₀+⁶³/₉₀

Add Fractions Calculator