Answers

Add 90/80 and 40/70

1^st number: 1 10/80, 2^nd number: 40/70

90/80 + 40/70 is 95/56.

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,
   90/80 = 90 × 7/80 × 7 = 630/560
3. Likewise, for the 2nd fraction, since 70 × 8 = 560,
   40/70 = 40 × 8/70 × 8 = 320/560
4. Add the two like fractions:
   630/560 + 320/560 = 630 + 320/560 = 950/560
5. 950/560 simplified gives 95/56
6. So, 90/80 + 40/70 = 95/56
   In mixed form: 139/56

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