Answers

Add 60/40 and 70/90

1^st number: 1 20/40, 2^nd number: 70/90

60/40 + 70/90 is 41/18.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 40 and 90 is 360
   
   Next, find the equivalent fraction of both fractional numbers with denominator 360
2. For the 1st fraction, since 40 × 9 = 360,
   60/40 = 60 × 9/40 × 9 = 540/360
3. Likewise, for the 2nd fraction, since 90 × 4 = 360,
   70/90 = 70 × 4/90 × 4 = 280/360
4. Add the two like fractions:
   540/360 + 280/360 = 540 + 280/360 = 820/360
5. 820/360 simplified gives 41/18
6. So, 60/40 + 70/90 = 41/18
   In mixed form: 25/18

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