Answers

Add 45/90 and 42/40

1^st number: 45/90, 2^nd number: 1 2/40

45/90 + 42/40 is 31/20.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 90 and 40 is 360
   
   Next, find the equivalent fraction of both fractional numbers with denominator 360
2. For the 1st fraction, since 90 × 4 = 360,
   45/90 = 45 × 4/90 × 4 = 180/360
3. Likewise, for the 2nd fraction, since 40 × 9 = 360,
   42/40 = 42 × 9/40 × 9 = 378/360
4. Add the two like fractions:
   180/360 + 378/360 = 180 + 378/360 = 558/360
5. 558/360 simplified gives 31/20
6. So, 45/90 + 42/40 = 31/20
   In mixed form: 111/20

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