Add 25/70 and 30/18
1st number: 25/70, 2nd number: 1 12/18
25/70 + 30/18 is 85/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 18 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 70 × 9 = 630,
25/70 = 25 × 9/70 × 9 = 225/630 - Likewise, for the 2nd fraction, since 18 × 35 = 630,
30/18 = 30 × 35/18 × 35 = 1050/630 - Add the two like fractions:
225/630 + 1050/630 = 225 + 1050/630 = 1275/630 - 1275/630 simplified gives 85/42
- So, 25/70 + 30/18 = 85/42
In mixed form: 21/42
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