Add 15/70 and 60/40
1st number: 15/70, 2nd number: 1 20/40
15/70 + 60/40 is 12/7.
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,
15/70 = 15 × 4/70 × 4 = 60/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
60/40 = 60 × 7/40 × 7 = 420/280 - Add the two like fractions:
60/280 + 420/280 = 60 + 420/280 = 480/280 - 480/280 simplified gives 12/7
- So, 15/70 + 60/40 = 12/7
In mixed form: 15/7
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