Answers

Add 70/54 and 90/40

1^st number: 1 16/54, 2^nd number: 2 10/40

70/54 + 90/40 is 383/108.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 54 and 40 is 1080
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1080
2. For the 1st fraction, since 54 × 20 = 1080,
   70/54 = 70 × 20/54 × 20 = 1400/1080
3. Likewise, for the 2nd fraction, since 40 × 27 = 1080,
   90/40 = 90 × 27/40 × 27 = 2430/1080
4. Add the two like fractions:
   1400/1080 + 2430/1080 = 1400 + 2430/1080 = 3830/1080
5. 3830/1080 simplified gives 383/108
6. So, 70/54 + 90/40 = 383/108
   In mixed form: 359/108

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