Add 42/20 and 28/70
1st number: 2 2/20, 2nd number: 28/70
42/20 + 28/70 is 5/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 70 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 20 × 7 = 140,
42/20 = 42 × 7/20 × 7 = 294/140 - Likewise, for the 2nd fraction, since 70 × 2 = 140,
28/70 = 28 × 2/70 × 2 = 56/140 - Add the two like fractions:
294/140 + 56/140 = 294 + 56/140 = 350/140 - 350/140 simplified gives 5/2
- So, 42/20 + 28/70 = 5/2
In mixed form: 21/2
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