Answers

Add 48/4 and 42/21

1^st number: 12 0/4, 2^nd number: 2 0/21

48/4 + 42/21 is 14/1.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 4 and 21 is 84
   
   Next, find the equivalent fraction of both fractional numbers with denominator 84
2. For the 1st fraction, since 4 × 21 = 84,
   48/4 = 48 × 21/4 × 21 = 1008/84
3. Likewise, for the 2nd fraction, since 21 × 4 = 84,
   42/21 = 42 × 4/21 × 4 = 168/84
4. Add the two like fractions:
   1008/84 + 168/84 = 1008 + 168/84 = 1176/84
5. 1176/84 simplified gives 14/1
6. So, 48/4 + 42/21 = 14/1

MathStep (Works offline)

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

Related: ⁹⁶/₄+⁴²/₂₁ ⁴⁸/₄+⁸⁴/₂₁ ⁴⁸/₈+⁴²/₂₁ ⁴⁸/₁₂+⁴²/₂₁ ⁴⁸/₄+⁴²/₆₃ ⁴⁸/₂₀+⁴²/₂₁ ⁴⁸/₂₈+⁴²/₂₁

Add Fractions Calculator