Add 25/42 and 90/70
1st number: 25/42, 2nd number: 1 20/70
25/42 + 90/70 is 79/42.
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,
25/42 = 25 × 5/42 × 5 = 125/210 - Likewise, for the 2nd fraction, since 70 × 3 = 210,
90/70 = 90 × 3/70 × 3 = 270/210 - Add the two like fractions:
125/210 + 270/210 = 125 + 270/210 = 395/210 - 395/210 simplified gives 79/42
- So, 25/42 + 90/70 = 79/42
In mixed form: 137/42
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