Add 72/40 and 75/42
1st number: 1 32/40, 2nd number: 1 33/42
72/40 + 75/42 is 251/70.
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,
72/40 = 72 × 21/40 × 21 = 1512/840 - Likewise, for the 2nd fraction, since 42 × 20 = 840,
75/42 = 75 × 20/42 × 20 = 1500/840 - Add the two like fractions:
1512/840 + 1500/840 = 1512 + 1500/840 = 3012/840 - 3012/840 simplified gives 251/70
- So, 72/40 + 75/42 = 251/70
In mixed form: 341/70
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