Add 40/7 and 28/20
1st number: 5 5/7, 2nd number: 1 8/20
40/7 + 28/20 is 249/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 20 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 7 × 20 = 140,
40/7 = 40 × 20/7 × 20 = 800/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
28/20 = 28 × 7/20 × 7 = 196/140 - Add the two like fractions:
800/140 + 196/140 = 800 + 196/140 = 996/140 - 996/140 simplified gives 249/35
- So, 40/7 + 28/20 = 249/35
In mixed form: 74/35
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