Add 12/70 and 90/40
1st number: 12/70, 2nd number: 2 10/40
12/70 + 90/40 is 339/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 40 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 70 × 4 = 280,
12/70 = 12 × 4/70 × 4 = 48/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
90/40 = 90 × 7/40 × 7 = 630/280 - Add the two like fractions:
48/280 + 630/280 = 48 + 630/280 = 678/280 - 678/280 simplified gives 339/140
- So, 12/70 + 90/40 = 339/140
In mixed form: 259/140
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