Answers

Add 90/60 and 10/70

1^st number: 1 30/60, 2^nd number: 10/70

90/60 + 10/70 is 23/14.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 60 and 70 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 60 × 7 = 420,
   90/60 = 90 × 7/60 × 7 = 630/420
3. Likewise, for the 2nd fraction, since 70 × 6 = 420,
   10/70 = 10 × 6/70 × 6 = 60/420
4. Add the two like fractions:
   630/420 + 60/420 = 630 + 60/420 = 690/420
5. 690/420 simplified gives 23/14
6. So, 90/60 + 10/70 = 23/14
   In mixed form: 19/14

MathStep (Works offline)

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

Related: ⁹⁰/₆₀+²⁰/₇₀ ⁹⁰/₆₀+³⁰/₇₀ ⁹⁰/₆₀+⁵⁰/₇₀

Add Fractions Calculator