Answers

Add 48/28 and 21/45

1^st number: 1 20/28, 2^nd number: 21/45

48/28 + 21/45 is 229/105.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 28 and 45 is 1260
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1260
2. For the 1st fraction, since 28 × 45 = 1260,
   48/28 = 48 × 45/28 × 45 = 2160/1260
3. Likewise, for the 2nd fraction, since 45 × 28 = 1260,
   21/45 = 21 × 28/45 × 28 = 588/1260
4. Add the two like fractions:
   2160/1260 + 588/1260 = 2160 + 588/1260 = 2748/1260
5. 2748/1260 simplified gives 229/105
6. So, 48/28 + 21/45 = 229/105
   In mixed form: 219/105

MathStep (Works offline)

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

Related: ⁹⁶/₂₈+²¹/₄₅ ⁴⁸/₂₈+⁴²/₄₅ ⁴⁸/₅₆+²¹/₄₅ ⁴⁸/₂₈+²¹/₉₀ ⁴⁸/₂₈+⁶³/₄₅ ⁴⁸/₈₄+²¹/₄₅

Add Fractions Calculator