Add 7/30 and 80/84
7/30 + 80/84 is 83/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 84 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 30 × 14 = 420,
7/30 = 7 × 14/30 × 14 = 98/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
80/84 = 80 × 5/84 × 5 = 400/420 - Add the two like fractions:
98/420 + 400/420 = 98 + 400/420 = 498/420 - 498/420 simplified gives 83/70
- So, 7/30 + 80/84 = 83/70
In mixed form: 113/70
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