Add 70/8 and 21/60
1st number: 8 6/8, 2nd number: 21/60
70/8 + 21/60 is 91/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 60 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 8 × 15 = 120,
70/8 = 70 × 15/8 × 15 = 1050/120 - Likewise, for the 2nd fraction, since 60 × 2 = 120,
21/60 = 21 × 2/60 × 2 = 42/120 - Add the two like fractions:
1050/120 + 42/120 = 1050 + 42/120 = 1092/120 - 1092/120 simplified gives 91/10
- So, 70/8 + 21/60 = 91/10
In mixed form: 91/10
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