Add 70/84 and 3/30
70/84 + 3/30 is 14/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 30 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 84 × 5 = 420,
70/84 = 70 × 5/84 × 5 = 350/420 - Likewise, for the 2nd fraction, since 30 × 14 = 420,
3/30 = 3 × 14/30 × 14 = 42/420 - Add the two like fractions:
350/420 + 42/420 = 350 + 42/420 = 392/420 - 392/420 simplified gives 14/15
- So, 70/84 + 3/30 = 14/15
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