Answers

Add 28/60 and 90/70

1^st number: 28/60, 2^nd number: 1 20/70

28/60 + 90/70 is 184/105.

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,
   28/60 = 28 × 7/60 × 7 = 196/420
3. Likewise, for the 2nd fraction, since 70 × 6 = 420,
   90/70 = 90 × 6/70 × 6 = 540/420
4. Add the two like fractions:
   196/420 + 540/420 = 196 + 540/420 = 736/420
5. 736/420 simplified gives 184/105
6. So, 28/60 + 90/70 = 184/105
   In mixed form: 179/105

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