Add 42/60 and 70/90
42/60 + 70/90 is 133/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 90 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 60 × 3 = 180,
42/60 = 42 × 3/60 × 3 = 126/180 - Likewise, for the 2nd fraction, since 90 × 2 = 180,
70/90 = 70 × 2/90 × 2 = 140/180 - Add the two like fractions:
126/180 + 140/180 = 126 + 140/180 = 266/180 - 266/180 simplified gives 133/90
- So, 42/60 + 70/90 = 133/90
In mixed form: 143/90
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