Add 70/40 and 7/20
1st number: 1 30/40, 2nd number: 7/20
70/40 + 7/20 is 21/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 20 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 40 × 1 = 40,
70/40 = 70 × 1/40 × 1 = 70/40 - Likewise, for the 2nd fraction, since 20 × 2 = 40,
7/20 = 7 × 2/20 × 2 = 14/40 - Add the two like fractions:
70/40 + 14/40 = 70 + 14/40 = 84/40 - 84/40 simplified gives 21/10
- So, 70/40 + 7/20 = 21/10
In mixed form: 21/10
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