Add 15/40 and 84/7
1st number: 15/40, 2nd number: 12 0/7
15/40 + 84/7 is 99/8.
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,
15/40 = 15 × 7/40 × 7 = 105/280 - Likewise, for the 2nd fraction, since 7 × 40 = 280,
84/7 = 84 × 40/7 × 40 = 3360/280 - Add the two like fractions:
105/280 + 3360/280 = 105 + 3360/280 = 3465/280 - 3465/280 simplified gives 99/8
- So, 15/40 + 84/7 = 99/8
In mixed form: 123/8
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