Add 70/42 and 80/70
1st number: 1 28/42, 2nd number: 1 10/70
70/42 + 80/70 is 59/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 70 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 42 × 5 = 210,
70/42 = 70 × 5/42 × 5 = 350/210 - Likewise, for the 2nd fraction, since 70 × 3 = 210,
80/70 = 80 × 3/70 × 3 = 240/210 - Add the two like fractions:
350/210 + 240/210 = 350 + 240/210 = 590/210 - 590/210 simplified gives 59/21
- So, 70/42 + 80/70 = 59/21
In mixed form: 217/21
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