Add 84/7 and 70/40
1st number: 12 0/7, 2nd number: 1 30/40
84/7 + 70/40 is 55/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 40 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 7 × 40 = 280,
84/7 = 84 × 40/7 × 40 = 3360/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
70/40 = 70 × 7/40 × 7 = 490/280 - Add the two like fractions:
3360/280 + 490/280 = 3360 + 490/280 = 3850/280 - 3850/280 simplified gives 55/4
- So, 84/7 + 70/40 = 55/4
In mixed form: 133/4
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