Add 25/30 and 20/70
25/30 + 20/70 is 47/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 70 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 30 × 7 = 210,
25/30 = 25 × 7/30 × 7 = 175/210 - Likewise, for the 2nd fraction, since 70 × 3 = 210,
20/70 = 20 × 3/70 × 3 = 60/210 - Add the two like fractions:
175/210 + 60/210 = 175 + 60/210 = 235/210 - 235/210 simplified gives 47/42
- So, 25/30 + 20/70 = 47/42
In mixed form: 15/42
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