Add 7/2 and 42/10
1st number: 3 1/2, 2nd number: 4 2/10
72 + 4210 is 7710.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 10 is 10
Next, find the equivalent fraction of both fractional numbers with denominator 10 - For the 1st fraction, since 2 × 5 = 10,
72 = 7 × 52 × 5 = 3510 - Likewise, for the 2nd fraction, since 10 × 1 = 10,
4210 = 42 × 110 × 1 = 4210 - Add the two like fractions:
3510 + 4210 = 35 + 4210 = 7710 - So, 7/2 + 42/10 = 77/10
In mixed form: 7710
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