Answers

Add 7/84 and 18/5

1^st number: 7/84, 2^nd number: 3 3/5

7/84 + 18/5 is 221/60.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 5 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 84 × 5 = 420,
   7/84 = 7 × 5/84 × 5 = 35/420
3. Likewise, for the 2nd fraction, since 5 × 84 = 420,
   18/5 = 18 × 84/5 × 84 = 1512/420
4. Add the two like fractions:
   35/420 + 1512/420 = 35 + 1512/420 = 1547/420
5. 1547/420 simplified gives 221/60
6. So, 7/84 + 18/5 = 221/60
   In mixed form: 341/60

MathStep (Works offline)

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

Related: ¹⁴/₈₄+¹⁸/₅ ⁷/₈₄+³⁶/₅ ⁷/₈₄+¹⁸/₁₀ ²¹/₈₄+¹⁸/₅ ⁷/₈₄+⁵⁴/₅ ⁷/₈₄+¹⁸/₁₅ ³⁵/₈₄+¹⁸/₅ ⁷/₈₄+⁹⁰/₅ ⁷/₈₄+¹⁸/₂₅ ⁴⁹/₈₄+¹⁸/₅ ⁷/₈₄+¹⁸/₃₅

Add Fractions Calculator