Answers

Add 98/14 and 21/90

1^st number: 7 0/14, 2^nd number: 21/90

98/14 + 21/90 is 217/30.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 14 and 90 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 14 × 45 = 630,
   98/14 = 98 × 45/14 × 45 = 4410/630
3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
   21/90 = 21 × 7/90 × 7 = 147/630
4. Add the two like fractions:
   4410/630 + 147/630 = 4410 + 147/630 = 4557/630
5. 4557/630 simplified gives 217/30
6. So, 98/14 + 21/90 = 217/30
   In mixed form: 77/30

MathStep (Works offline)

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

Related: ⁹⁸/₁₄+⁴²/₉₀ ⁹⁸/₂₈+²¹/₉₀ ⁹⁸/₁₄+⁶³/₉₀ ⁹⁸/₄₂+²¹/₉₀ ⁹⁸/₇₀+²¹/₉₀

Add Fractions Calculator