Add 15/42 and 54/10
1st number: 15/42, 2nd number: 5 4/10
15/42 + 54/10 is 403/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 10 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 42 × 5 = 210,
15/42 = 15 × 5/42 × 5 = 75/210 - Likewise, for the 2nd fraction, since 10 × 21 = 210,
54/10 = 54 × 21/10 × 21 = 1134/210 - Add the two like fractions:
75/210 + 1134/210 = 75 + 1134/210 = 1209/210 - 1209/210 simplified gives 403/70
- So, 15/42 + 54/10 = 403/70
In mixed form: 553/70
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