Add 12/80 and 30/70
12/80 + 30/70 is 81/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 70 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 80 × 7 = 560,
12/80 = 12 × 7/80 × 7 = 84/560 - Likewise, for the 2nd fraction, since 70 × 8 = 560,
30/70 = 30 × 8/70 × 8 = 240/560 - Add the two like fractions:
84/560 + 240/560 = 84 + 240/560 = 324/560 - 324/560 simplified gives 81/140
- So, 12/80 + 30/70 = 81/140
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