Answers

Add 15/45 and 70/40

1^st number: 15/45, 2^nd number: 1 30/40

15/45 + 70/40 is 25/12.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 45 and 40 is 360
   
   Next, find the equivalent fraction of both fractional numbers with denominator 360
2. For the 1st fraction, since 45 × 8 = 360,
   15/45 = 15 × 8/45 × 8 = 120/360
3. Likewise, for the 2nd fraction, since 40 × 9 = 360,
   70/40 = 70 × 9/40 × 9 = 630/360
4. Add the two like fractions:
   120/360 + 630/360 = 120 + 630/360 = 750/360
5. 750/360 simplified gives 25/12
6. So, 15/45 + 70/40 = 25/12
   In mixed form: 21/12

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