Add 2/5 and 72/70
1st number: 2/5, 2nd number: 1 2/70
2/5 + 72/70 is 10/7.
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,
2/5 = 2 × 14/5 × 14 = 28/70 - Likewise, for the 2nd fraction, since 70 × 1 = 70,
72/70 = 72 × 1/70 × 1 = 72/70 - Add the two like fractions:
28/70 + 72/70 = 28 + 72/70 = 100/70 - 100/70 simplified gives 10/7
- So, 2/5 + 72/70 = 10/7
In mixed form: 13/7
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