Add 30/80 and 15/84
30/80 + 15/84 is 31/56.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 84 is 1680
Next, find the equivalent fraction of both fractional numbers with denominator 1680 - For the 1st fraction, since 80 × 21 = 1680,
30/80 = 30 × 21/80 × 21 = 630/1680 - Likewise, for the 2nd fraction, since 84 × 20 = 1680,
15/84 = 15 × 20/84 × 20 = 300/1680 - Add the two like fractions:
630/1680 + 300/1680 = 630 + 300/1680 = 930/1680 - 930/1680 simplified gives 31/56
- So, 30/80 + 15/84 = 31/56
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