Answers

Add 30/28 and 4/70

1^st number: 1 2/28, 2^nd number: 4/70

30/28 + 4/70 is 79/70.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 28 and 70 is 140
2. For the 1st fraction, since 28 × 5 = 140,
   30/28 = 30 × 5/28 × 5 = 150/140
3. Likewise, for the 2nd fraction, since 70 × 2 = 140,
   4/70 = 4 × 2/70 × 2 = 8/140
4. Add the two fractions:
   150/140 + 8/140 = 150 + 8/140 = 158/140
5. 158/140 simplified gives 79/70
6. So, 30/28 + 4/70 = 79/70
   In mixed form: 19/70

MathStep (Works offline)

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

Related: ⁶⁰/₂₈+⁴/₇₀ ³⁰/₂₈+⁸/₇₀ ³⁰/₅₆+⁴/₇₀ ⁹⁰/₂₈+⁴/₇₀ ³⁰/₂₈+¹²/₇₀ ³⁰/₈₄+⁴/₇₀ ³⁰/₂₈+²⁰/₇₀ ³⁰/₂₈+²⁸/₇₀

Add Fractions Calculator