Add 12/40 and 45/7
1st number: 12/40, 2nd number: 6 3/7
12/40 + 45/7 is 471/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 7 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 40 × 7 = 280,
12/40 = 12 × 7/40 × 7 = 84/280 - Likewise, for the 2nd fraction, since 7 × 40 = 280,
45/7 = 45 × 40/7 × 40 = 1800/280 - Add the two like fractions:
84/280 + 1800/280 = 84 + 1800/280 = 1884/280 - 1884/280 simplified gives 471/70
- So, 12/40 + 45/7 = 471/70
In mixed form: 651/70
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