Add 45/20 and 70/40
1st number: 2 5/20, 2nd number: 1 30/40
45/20 + 70/40 is 4/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 40 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 20 × 2 = 40,
45/20 = 45 × 2/20 × 2 = 90/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
70/40 = 70 × 1/40 × 1 = 70/40 - Add the two like fractions:
90/40 + 70/40 = 90 + 70/40 = 160/40 - 160/40 simplified gives 4/1
- So, 45/20 + 70/40 = 4/1
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