Add 25/70 and 8/21
25/70 + 8/21 is 31/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 21 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 70 × 3 = 210,
25/70 = 25 × 3/70 × 3 = 75/210 - Likewise, for the 2nd fraction, since 21 × 10 = 210,
8/21 = 8 × 10/21 × 10 = 80/210 - Add the two like fractions:
75/210 + 80/210 = 75 + 80/210 = 155/210 - 155/210 simplified gives 31/42
- So, 25/70 + 8/21 = 31/42
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