Answers

Add 40/28 and 42/80

1^st number: 1 12/28, 2^nd number: 42/80

40/28 + 42/80 is 547/280.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 28 and 80 is 560
   
   Next, find the equivalent fraction of both fractional numbers with denominator 560
2. For the 1st fraction, since 28 × 20 = 560,
   40/28 = 40 × 20/28 × 20 = 800/560
3. Likewise, for the 2nd fraction, since 80 × 7 = 560,
   42/80 = 42 × 7/80 × 7 = 294/560
4. Add the two like fractions:
   800/560 + 294/560 = 800 + 294/560 = 1094/560
5. 1094/560 simplified gives 547/280
6. So, 40/28 + 42/80 = 547/280
   In mixed form: 1267/280

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