Add 72/5 and 12/40
1st number: 14 2/5, 2nd number: 12/40
72/5 + 12/40 is 147/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 40 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 5 × 8 = 40,
72/5 = 72 × 8/5 × 8 = 576/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
12/40 = 12 × 1/40 × 1 = 12/40 - Add the two like fractions:
576/40 + 12/40 = 576 + 12/40 = 588/40 - 588/40 simplified gives 147/10
- So, 72/5 + 12/40 = 147/10
In mixed form: 147/10
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