Answers

Add 70/54 and 72/40

1^st number: 1 16/54, 2^nd number: 1 32/40

70/54 + 72/40 is 418/135.

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,
   72/40 = 72 × 27/40 × 27 = 1944/1080
4. Add the two like fractions:
   1400/1080 + 1944/1080 = 1400 + 1944/1080 = 3344/1080
5. 3344/1080 simplified gives 418/135
6. So, 70/54 + 72/40 = 418/135
   In mixed form: 313/135

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