Answers

Add 15/84 and 70/5

1^st number: 15/84, 2^nd number: 14 0/5

15/84 + 70/5 is 397/28.

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,
   15/84 = 15 × 5/84 × 5 = 75/420
3. Likewise, for the 2nd fraction, since 5 × 84 = 420,
   70/5 = 70 × 84/5 × 84 = 5880/420
4. Add the two like fractions:
   75/420 + 5880/420 = 75 + 5880/420 = 5955/420
5. 5955/420 simplified gives 397/28
6. So, 15/84 + 70/5 = 397/28
   In mixed form: 145/28

MathStep (Works offline)

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

Related: ³⁰/₈₄+⁷⁰/₅ ¹⁵/₈₄+⁷⁰/₁₀ ⁴⁵/₈₄+⁷⁰/₅ ¹⁵/₈₄+⁷⁰/₁₅ ⁷⁵/₈₄+⁷⁰/₅ ¹⁵/₈₄+⁷⁰/₂₅ ¹⁵/₈₄+⁷⁰/₃₅

Add Fractions Calculator