Add 42/40 and 25/7
1st number: 1 2/40, 2nd number: 3 4/7
42/40 + 25/7 is 647/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 7 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 40 × 7 = 280,
42/40 = 42 × 7/40 × 7 = 294/280 - Likewise, for the 2nd fraction, since 7 × 40 = 280,
25/7 = 25 × 40/7 × 40 = 1000/280 - Add the two like fractions:
294/280 + 1000/280 = 294 + 1000/280 = 1294/280 - 1294/280 simplified gives 647/140
- So, 42/40 + 25/7 = 647/140
In mixed form: 487/140
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