Answers

Add 35/21 and 15/45

1^st number: 1 14/21, 2^nd number: 15/45

35/21 + 15/45 is 2/1.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 45 is 315
   
   Next, find the equivalent fraction of both fractional numbers with denominator 315
2. For the 1st fraction, since 21 × 15 = 315,
   35/21 = 35 × 15/21 × 15 = 525/315
3. Likewise, for the 2nd fraction, since 45 × 7 = 315,
   15/45 = 15 × 7/45 × 7 = 105/315
4. Add the two like fractions:
   525/315 + 105/315 = 525 + 105/315 = 630/315
5. 630/315 simplified gives 2/1
6. So, 35/21 + 15/45 = 2/1

MathStep (Works offline)

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

Related: ⁷⁰/₂₁+¹⁵/₄₅ ³⁵/₂₁+³⁰/₄₅ ³⁵/₄₂+¹⁵/₄₅ ³⁵/₂₁+¹⁵/₉₀ ³⁵/₆₃+¹⁵/₄₅ ³⁵/₂₁+⁷⁵/₄₅

Add Fractions Calculator