Add 20/7 and 70/40
1st number: 2 6/7, 2nd number: 1 30/40
20/7 + 70/40 is 129/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 40 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 7 × 40 = 280,
20/7 = 20 × 40/7 × 40 = 800/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
70/40 = 70 × 7/40 × 7 = 490/280 - Add the two like fractions:
800/280 + 490/280 = 800 + 490/280 = 1290/280 - 1290/280 simplified gives 129/28
- So, 20/7 + 70/40 = 129/28
In mixed form: 417/28
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