Answers

Add 98/80 and 30/70

1^st number: 1 18/80, 2^nd number: 30/70

98/80 + 30/70 is 463/280.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 80 and 70 is 560
   
   Next, find the equivalent fraction of both fractional numbers with denominator 560
2. For the 1st fraction, since 80 × 7 = 560,
   98/80 = 98 × 7/80 × 7 = 686/560
3. Likewise, for the 2nd fraction, since 70 × 8 = 560,
   30/70 = 30 × 8/70 × 8 = 240/560
4. Add the two like fractions:
   686/560 + 240/560 = 686 + 240/560 = 926/560
5. 926/560 simplified gives 463/280
6. So, 98/80 + 30/70 = 463/280
   In mixed form: 1183/280

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