Add 80/70 and 42/30
1st number: 1 10/70, 2nd number: 1 12/30
80/70 + 42/30 is 89/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 30 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 70 × 3 = 210,
80/70 = 80 × 3/70 × 3 = 240/210 - Likewise, for the 2nd fraction, since 30 × 7 = 210,
42/30 = 42 × 7/30 × 7 = 294/210 - Add the two like fractions:
240/210 + 294/210 = 240 + 294/210 = 534/210 - 534/210 simplified gives 89/35
- So, 80/70 + 42/30 = 89/35
In mixed form: 219/35
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