Add 42/20 and 98/70
1st number: 2 2/20, 2nd number: 1 28/70
42/20 + 98/70 is 7/2.
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,
98/70 = 98 × 2/70 × 2 = 196/140 - Add the two like fractions:
294/140 + 196/140 = 294 + 196/140 = 490/140 - 490/140 simplified gives 7/2
- So, 42/20 + 98/70 = 7/2
In mixed form: 31/2
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