Add 48/40 and 45/42
1st number: 1 8/40, 2nd number: 1 3/42
48/40 + 45/42 is 159/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 42 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 40 × 21 = 840,
48/40 = 48 × 21/40 × 21 = 1008/840 - Likewise, for the 2nd fraction, since 42 × 20 = 840,
45/42 = 45 × 20/42 × 20 = 900/840 - Add the two like fractions:
1008/840 + 900/840 = 1008 + 900/840 = 1908/840 - 1908/840 simplified gives 159/70
- So, 48/40 + 45/42 = 159/70
In mixed form: 219/70
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