Add 75/70 and 1/42
1st number: 1 5/70, 2nd number: 1/42
75/70 + 1/42 is 23/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 42 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 70 × 3 = 210,
75/70 = 75 × 3/70 × 3 = 225/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
1/42 = 1 × 5/42 × 5 = 5/210 - Add the two like fractions:
225/210 + 5/210 = 225 + 5/210 = 230/210 - 230/210 simplified gives 23/21
- So, 75/70 + 1/42 = 23/21
In mixed form: 12/21
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