Add 12/5 and 90/70
1st number: 2 2/5, 2nd number: 1 20/70
12/5 + 90/70 is 129/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 70 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 5 × 14 = 70,
12/5 = 12 × 14/5 × 14 = 168/70 - Likewise, for the 2nd fraction, since 70 × 1 = 70,
90/70 = 90 × 1/70 × 1 = 90/70 - Add the two like fractions:
168/70 + 90/70 = 168 + 90/70 = 258/70 - 258/70 simplified gives 129/35
- So, 12/5 + 90/70 = 129/35
In mixed form: 324/35
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